{"title":"Dell PowerEdge R740xd Servers","description":"\u003cp data-start=\"578\" data-end=\"993\"\u003eThe Dell PowerEdge R740xd is a high-density 2U rack server engineered for data-intensive workloads that demand maximum storage capacity without sacrificing performance. Built on Intel Xeon Scalable processors, the R740xd combines powerful compute capabilities with industry-leading storage flexibility, making it ideal for software-defined storage, big data, backup and archiving, and large-scale file repositories.\u003c\/p\u003e\n\u003cp data-start=\"995\" data-end=\"1393\"\u003eWhat sets the Dell PowerEdge R740xd apart is its exceptional drive capacity. With support for up to 24 x 2.5” (SFF) drives or 12 x 3.5” (LFF) drives—plus additional rear flex bay options and NVMe configurations—the R740xd is designed to handle massive amounts of data efficiently. This makes it a go-to solution for organizations that need both performance and storage density in a single platform.\u003c\/p\u003e\n\u003cp data-start=\"1395\" data-end=\"1722\"\u003eThe PowerEdge R740xd also supports high-speed DDR4 ECC memory and advanced RAID controllers such as the PERC H730p and H740p, ensuring reliable data protection and consistent performance across demanding workloads. With optional NVMe support, you can dramatically increase data access speeds for latency-sensitive applications.\u003c\/p\u003e\n\u003cp data-start=\"1724\" data-end=\"1980\"\u003eIntegrated iDRAC9 management allows for remote system monitoring, deployment, and maintenance, giving IT teams full control over their infrastructure from anywhere. This is especially valuable for managing large storage environments or distributed systems.\u003c\/p\u003e\n\u003cp data-start=\"1982\" data-end=\"2300\"\u003eAt Wholesale Servers, all Dell PowerEdge R740xd servers are fully tested, professionally refurbished, and built to order. Customize your system with the right CPUs, RAM, storage mix, and RAID configuration to match your exact use case—whether it's high-capacity storage, virtualization, or data-intensive applications.\u003c\/p\u003e\n\u003cp data-start=\"2302\" data-end=\"2523\"\u003eIf your environment demands maximum storage density, scalability, and performance, the Dell R740xd is one of the most powerful and flexible solutions available for SMBs, enterprise workloads, and advanced home lab builds.\u003c\/p\u003e","products":[{"product_id":"dell-poweredge-r740xd-12-bay-3-5-chassis","title":"Dell PowerEdge R740xd 12-Bay 3.5\" Drives [14th Gen]","description":"\u003cp\u003eIn our hands-on experience across hundreds of 14th gen storage-dense deployments, the R740xd 12-Bay 3.5\" is the configuration we reach for most often in the family. This is the R740xd at its most archetypal: twelve hot-swap 3.5\" front bays for bulk NL-SAS capacity, optional mid-bay and rear flex bay expansion to 18 LFF total in a single 2U chassis, and the same Intel Purley dual-socket compute platform as the R740 2U companion. For the IT director sizing a backup target, a vSAN OSA capacity tier, a Ceph OSD node, or a general-purpose storage server in 2026, the R740xd 12-Bay 3.5\" is our highest-velocity storage-dense SKU.\u003c\/p\u003e\u003cp\u003eThis page is the primary platform reference for the R740xd family on our catalog. The R740xd ships in five front-bay configurations that share the same processor, memory, RAID, networking, and management platforms: 12-Bay 3.5\" (this page), 12-Bay 3.5\" + 2-Bay 3.5\" RFB, 24-Bay 2.5\" SAS\/SATA, 24-Bay 2.5\" + 4-Bay 2.5\" RFB, and the 24-Bay 2.5\" NVMe companion. The variant-specific framing for each lives on its own page; this page carries the full Purley platform vocabulary that the companions link back to.\u003c\/p\u003e\u003cp\u003eTo configure a build, call \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd we ship runs through a \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in across every memory channel, every PCIe slot, and every drive bay including mid-bay and rear-bay positions if equipped; for LFF deployments specifically, the burn-in includes a full surface scan and SMART validation on every drive bay before shipment. Every unit ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty and 1-Year, 2-Year, and 3-Year Premium options available at quote time. Volume pricing applies at \u003cstrong\u003e5 units\u003c\/strong\u003e and above; tell us your workload and quantity and we will steer you to the right R740xd variant or to an adjacent platform if the data supports it.\u003c\/p\u003e\u003ch2\u003eWhere the R740xd 12-Bay 3.5\" Fits in the Family\u003c\/h2\u003e\u003cp\u003eThe R740xd is the storage-focused 2U companion to the R740. Same compute platform, same management firmware, same networking. The R740 caps at 8 LFF or 16 SFF front bays with no mid-bay or rear-bay options. The R740xd exists specifically because that ceiling is too low for storage-dense workloads. If your workload needs more than 8 LFF or 16 SFF, or needs mid-bay or rear-bay expansion, you need the R740xd. If your workload is compute-balanced and 8 to 16 bays of front storage is sufficient, the \u003ca href=\"\/products\/dell-poweredge-r740-16-bay-2-5-chassis\"\u003eR740 16-Bay 2.5\"\u003c\/a\u003e is the cleaner spec at lower chassis cost.\u003c\/p\u003e\u003cp\u003eWithin the R740xd family, the 12-Bay 3.5\" is the default. We pick it when the workload is capacity-driven rather than IOPS-driven: backup targets, capacity-tier SDS nodes, file servers, media archives, cold storage. We pick a 24-Bay 2.5\" variant when the workload is performance-driven and SSDs are the right drive class. We pick a +RFB variant when the additional rear bays are worth the reduced PCIe slot count. We pick the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion when the workload specifically requires native NVMe across all front bays. The full variant map lives in Where to Look Instead below.\u003c\/p\u003e\u003ch2\u003eStorage - 12x 3.5\" LFF Front Bays\u003c\/h2\u003e\u003cp\u003eTwelve hot-swap 3.5\" SAS\/SATA front bays on a direct-attach LFF backplane. This is the R740xd's bulk-capacity proposition: up to 12 x 20 TB = 240 TB raw on the front bays alone, before any mid-bay or rear-bay expansion. The backplane is SAS\/SATA only on the LFF front bays; front NVMe is not supported on this chassis. If front NVMe is the requirement, the 24-Bay 2.5\" NVMe companion is the right page.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMid-bay expansion (R740xd-specific):\u003c\/strong\u003e Optional 4x 3.5\" or 4x 2.5\" mid-drive tray adds four additional bays inside the chassis, bringing front+mid to 16 LFF total (or 12 LFF + 4 SFF for hybrid configurations). The mid-bay cage is accessed by removing the top cover; drives are hot-swap once installed. The 4x 2.5\" mid-bay variant supports NVMe in the mid position, which is one of the few ways to add NVMe to the LFF chassis. Cabling and PSU power budget must support the additional bays at order time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRear flex bay (RFB) option:\u003c\/strong\u003e The 12-Bay 3.5\" can be configured with a 2x 3.5\" rear flex bay, bringing front+rear to 14 LFF, or 18 LFF total with both mid-bay and rear-bay populated. The architectural tradeoff is reduced PCIe slot count because the rear riser is consumed by the rear-bay assembly. The +RFB configuration is sold as a separate SKU; see \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-2-bay-lff-rfb-build-your-own\"\u003eR740xd 12-Bay 3.5\" + 2-Bay LFF RFB\u003c\/a\u003e if rear bays are in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDrive options we quote:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNL-SAS 7.2K:\u003c\/strong\u003e 12 TB, 14 TB, 16 TB, 18 TB, 20 TB. The volume capacity sweet spot on the refurbished market in 2026 is 16 TB. RAID 6 mandatory above four drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnterprise SATA HDD:\u003c\/strong\u003e 8 TB, 12 TB. Acceptable for backup targets and cold archive. Lower MTBF than NL-SAS; NL-SAS is the correct spec for 24\/7 production workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5\" SAS SSD:\u003c\/strong\u003e Rare on the secondary market and expensive per TB. If you need LFF flash, the volume play is 2.5\" SSDs in a 3.5\"-to-2.5\" caddy adapter, but the 24-Bay 2.5\" companion variants are usually cleaner for flash-heavy deployments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRAID 5 is unsafe on large-capacity LFF.\u003c\/strong\u003e RAID 6 is the floor on any NL-SAS array above four drives. The unrecoverable-read-error rate on multi-TB drives makes a second failure during rebuild statistically likely; a 16 TB NL-SAS rebuild on a degraded RAID 6 takes 24 to 36 hours under load. We will not configure RAID 5 on 12 TB or larger NL-SAS without a documented warning to the customer; our default is RAID 6 or RAID 60 on spinning disk above 4 TB per drive. This is not a marketing preference, it is the failure-mode arithmetic of large-capacity disks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBoot:\u003c\/strong\u003e BOSS-S1 (Boot Optimized Storage Solution, dual mirrored M.2 SATA SSDs on a dedicated PCIe card, hardware RAID 1, cold-swap). Standard 14th gen boot device. We add it to every R740xd BOM by default. Do not boot from the front bays; reserve those for workload storage. Booting from the BOSS keeps the OS isolated from the data-plane RAID controller and frees all twelve front bays for the workload.\u003c\/p\u003e\u003ch2\u003eStorage Controllers\u003c\/h2\u003e\u003cp\u003eThe full 14th gen PERC family is available on the R740xd via the Mini-PERC slot. Picking the right controller is the single decision that most affects steady-state write performance on this chassis, and the choice is workload-driven, not budget-driven by default.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H740P (8 GB NV cache, battery-backed):\u003c\/strong\u003e Our production storage default. The 8 GB non-volatile cache and battery backing survive a power event without UPS dependency. For the R740xd's storage-dense workloads (large sequential writes on backup targets, parity writes on RAID 6, mixed I\/O on file servers), the H740P is the right call. This is what we quote unless the workload specifically calls for something else.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730P (2 GB cache, battery-backed):\u003c\/strong\u003e Solid general-purpose choice for mixed or read-heavy workloads where 8 GB of cache is over-spec. Lower price point than the H740P, same drop-in form factor. For backup-target workloads where most writes are sequential and the controller cache is rarely the bottleneck, the H730P is often acceptable and we will say so honestly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730 (1 GB cache, battery-backed):\u003c\/strong\u003e 13th-gen carryover via Mini-PERC slot compatibility. Viable on the R740xd but generally a downgrade vs the H730P or H740P on Cascade Lake workloads. We see this controller frequently on the secondary market because 13th-gen-to-14th-gen field upgrades carried it forward rather than replacing it; refurbished units sometimes ship with the H730 already installed from prior deployments. Quote when budget is the hard constraint and write performance is not load-bearing; quote H730P or H740P otherwise. The H730 is not a primary recommendation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H330 (no cache):\u003c\/strong\u003e Entry-tier hardware RAID for light workloads. Not appropriate for production storage-dense deployments on this chassis. Listed for completeness; we rarely quote it on the R740xd 12-Bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHBA330 (pass-through HBA):\u003c\/strong\u003e Required for software-defined storage stacks (vSAN OSA, Storage Spaces Direct, Ceph, ZFS). The HBA presents disks directly to the OS or hypervisor without any RAID abstraction. The R740xd 12-Bay 3.5\" is the configuration we ship most often as a Ceph OSD node, and the HBA330 is the correct controller for that deployment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H840 (external):\u003c\/strong\u003e For external SAS enclosure connectivity (Dell MD1400 \/ MD1420 JBOD chassis). Useful when scale-out beyond 18 internal bays is needed but adding a second R740xd chassis is not the preferred path. Quote at order time if external storage is in the design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eS140 (software RAID via chipset):\u003c\/strong\u003e Dev\/test and light workloads only. Not a production recommendation on storage-dense deployments.\u003c\/p\u003e\u003ch2\u003eProcessors\u003c\/h2\u003e\u003cp\u003eThe R740xd supports 1st Generation Intel Xeon Scalable (Skylake-SP, 2017 original launch) and 2nd Generation Intel Xeon Scalable (Cascade Lake-SP, 2019 refresh) in the same LGA 3647 socket. Drop-in compatible, no BIOS forklift if firmware is current. This is the V1 \/ V2 socket compatibility story that makes 14th gen Dell hardware resilient on the secondary market: a chassis bought as V1 in 2018 takes a V2 processor swap in 2026 without replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOur recommendations for most R740xd 12-Bay 3.5\" deployments:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6230 (20 cores, 2.1 GHz, 125W TDP):\u003c\/strong\u003e The sweet spot for storage-dense workloads. Twenty cores per socket gives you forty in a dual-socket build, more than adequate for backup targets, file servers, and capacity-tier SDS nodes. 125W TDP fits the standard heatsink envelope cleanly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver 4214 (12 cores, 2.2 GHz, 85W TDP):\u003c\/strong\u003e For backup-target deployments where compute is genuinely secondary to storage capacity. Twenty-four cores total in a dual-socket build is sufficient for Veeam proxy or Commvault MediaAgent duty on a capacity-target. The 85W TDP keeps thermals comfortable in storage-dense configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248 (20 cores, 2.5 GHz, 150W TDP):\u003c\/strong\u003e When the storage server doubles as application tier. Higher clock speed than the 6230, same core count. Note the 150W TDP boundary discussed below.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHeatsink mismatch above 150W is the trap.\u003c\/strong\u003e Any processor above 150W TDP requires the high-performance heatsink. The standard heatsink will thermally throttle under sustained load. The mismatch is one of the most common configuration errors we see on used R740xd units sold by less-careful sellers: a 6248 or Platinum-class CPU dropped into a chassis spec'd with the standard heatsink. Confirm the heatsink at quote time against the CPU TDP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e A single-socket R740xd build leaves the second CPU's 12 DIMM slots unreachable, half the PCIe lanes unavailable, and the second NDC slot (if present) inactive. Single-socket on a dual-socket platform is rarely the right call; if compute is light enough to justify a single socket, the 1U R640 is usually the better chassis. We will steer customers away from single-socket R740xd builds in almost every case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStorage-dense thermal note:\u003c\/strong\u003e R740xd 12-Bay 3.5\" configurations run hotter than equivalent R740 configurations because the additional drive bays draw power and generate heat inside the chassis. The thermal envelope is unchanged but the headroom is smaller. For Gold 6248 or above, confirm ambient temperature and rack airflow at quote time.\u003c\/p\u003e\u003ch2\u003eMemory\u003c\/h2\u003e\u003cp\u003e24 DDR4 DIMM slots: 12 per CPU, 6 channels per CPU, 2 DIMMs per channel. Supports RDIMM up to 128 GB per DIMM, LRDIMM up to 256 GB per DIMM. Maximum capacity 3 TB with 128 GB RDIMMs at full 2 DPC population, 6 TB with 256 GB LRDIMMs, up to 7.68 TB combined with Intel Optane PMem on Cascade Lake L-series CPUs (rare on storage-dense deployments).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMemory speed by population and generation:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkylake (V1):\u003c\/strong\u003e DDR4-2666 at 1 DPC, DDR4-2666 at 2 DPC (no penalty for full population)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) Gold 6200 \/ 5222 SKUs:\u003c\/strong\u003e DDR4-2933 at 1 DPC, drops to DDR4-2666 at 2 DPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) other SKUs:\u003c\/strong\u003e DDR4-2666 at any population\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRDIMM vs LRDIMM:\u003c\/strong\u003e For most R740xd 12-Bay 3.5\" workloads, RDIMM is the right choice. 32 GB and 64 GB RDIMMs are abundant on the secondary market and price-efficient. LRDIMM (load-reduced) is only the right call when you specifically need 128 GB or 256 GB per DIMM to hit 1.5 TB or higher total capacity, which is rare on storage-dense workloads where the application is typically bounded by drive throughput rather than memory capacity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVDIMM-N:\u003c\/strong\u003e The R740xd supports up to 12 NVDIMM-N modules (16 GB each, 192 GB total) for write-ahead logging and other low-latency persistence applications. Important chassis-specific constraint: if the NVDIMM-N battery is installed on the GPU shroud, full-length GPUs are not supported on riser 2, and only the 3.5\" mid-drive tray can be installed (or no mid-drive tray). NVDIMM-N + 3.5\" mid-bay LFF storage is the supported combination; NVDIMM-N + 2.5\" mid-bay is not. Confirm at quote time if both NVDIMM-N and mid-bay are in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVMe bifurcation BIOS setting:\u003c\/strong\u003e Not directly a memory topic, but worth flagging here because it's the other common platform-config trap on R740xd: any PCIe-attached NVMe carrier requires bifurcation enabled in BIOS before the drives will enumerate. Default BIOS does not enable bifurcation. We set this at burn-in for any R740xd shipped with PCIe NVMe; if you're commissioning a unit from another source, check the BIOS first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWorkload sizing guidance:\u003c\/strong\u003e SDS nodes (vSAN OSA, Ceph OSDs) benefit significantly from memory bandwidth and capacity; spec generously. Backup targets benefit modestly; 96 to 192 GB is usually sufficient. File servers benefit least; 64 to 128 GB is honest for most NL-SAS file workloads. Spec to the workload, not to the chassis ceiling: a 12-drive backup target with 128 GB is honest; the same target with 768 GB is over-spent and we will tell you so.\u003c\/p\u003e\u003ch2\u003eNetworking and PCIe Expansion\u003c\/h2\u003e\u003cp\u003eThe R740xd uses Dell's Network Daughter Card (NDC) mezzanine standard, the equivalent of HPE's FlexibleLOM. The NDC slot is dedicated and does not consume a PCIe slot, which is one of the small architectural advantages of the 14th gen Dell platform over comparable HPE Gen10 designs. NDC options are factory-installed or field-swappable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNDC port options:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 1 GbE:\u003c\/strong\u003e The base option. Acceptable for management-network-only or for very light workloads. Not our recommendation for any storage-dense deployment because the network becomes the bottleneck on backup or SDS traffic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 10 GbE + 2x 1 GbE:\u003c\/strong\u003e The pragmatic mixed option. 10 GbE for the data plane, 1 GbE for management. Acceptable when 10 GbE is sufficient bandwidth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 10 GbE (Intel X710 or Broadcom 57414):\u003c\/strong\u003e Our baseline recommendation for backup targets where multiple Veeam proxies or Commvault MediaAgents write to the same chassis simultaneously. The four ports give you bonding flexibility and headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 25 GbE (Mellanox ConnectX-4 Lx):\u003c\/strong\u003e The right call for SDS deployments specifically. vSAN OSA cache-tier, Ceph OSD east-west replication, and Storage Spaces Direct all benefit from 25 GbE over 10 GbE. 25 GbE switching is mature and price-competitive in 2026.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e100 GbE:\u003c\/strong\u003e Not available as an NDC option on the R740xd. If 100 GbE is the requirement, it goes in a PCIe slot (Mellanox ConnectX-5 or ConnectX-6 dual-port 100 GbE). ConnectX-6 needs PCIe Gen4 host bandwidth to hit line rate, which the R740xd cannot provide (Gen3 ceiling); ConnectX-5 is the right card for this platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe 3.0 slots depending on riser configuration (riser 1A, 1B, 2A, 2B options). Base 12-Bay 3.5\" with no mid-bay or rear-bay gives the full slot count. Mid-bay populated drops to roughly 6 effective slots because riser 3 is consumed by mid-bay cabling. Rear-bay populated (the +RFB variant) consumes the rear riser entirely. The bays-vs-PCIe tradeoff is the central architectural decision on R740xd configuration; confirm your PCIe card list at quote time before locking the chassis. Riser config is order-time locked because field reconfiguration requires chassis disassembly.\u003c\/p\u003e\u003ch2\u003eGPU Support\u003c\/h2\u003e\u003cp\u003eThe honest answer on the 12-Bay 3.5\" specifically: this chassis does not support GPUs as a practical matter. The mid-bay and rear-bay options that justify choosing the R740xd over the R740 in the first place consume the PCIe riser slots that would otherwise host GPU cards. A 12-Bay 3.5\" base configuration with no mid-bay and no rear-bay can technically host a low-profile GPU in a riser slot, but at that point you have given up the bay expansion that is the R740xd's reason to exist, and the R740 is the cleaner spec for that workload.\u003c\/p\u003e\u003cp\u003eIf you need GPU on an R740xd-class platform, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003e24-Bay 2.5\" SAS\/SATA companion\u003c\/a\u003e is the right call: up to 3 double-width 300W GPUs, up to 6 single-width 150W GPUs, or FPGA configurations. The 24-Bay 2.5\" NVMe companion has tighter constraints (PCIe lane budget is consumed by NVMe drives), typically capping at 2 GPUs maximum.\u003c\/p\u003e\u003cp\u003eIf you need GPU plus bulk LFF storage in the same chassis, the answer is the T640 tower (4.5U, more permissive GPU envelope) or a dedicated GPU server with external SAS storage via PERC H840. The 2U LFF + GPU combination is genuinely constrained on this platform generation and we will say so honestly.\u003c\/p\u003e\u003ch2\u003eManagement - iDRAC9 Generation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eiDRAC9 Enterprise is the production spec.\u003c\/strong\u003e Full remote KVM with HTML5 console, virtual media for ISO mounting, group management via OpenManage Enterprise, Lifecycle Controller for firmware updates without OS involvement, and Quick Sync 2 wireless management for at-the-rack diagnostics. The Express tier is insufficient for unattended deployment because it lacks the virtual console; we spec Enterprise on every R740xd BOM by default.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSilicon Root of Trust\u003c\/strong\u003e via the Intel platform. TPM 2.0 module supported and recommended for any compliance-bound deployment. Cryptographically signed firmware verification at boot. The R740xd meets HIPAA, PCI DSS, CMMC, and federal civilian compliance requirements in 2026.\u003c\/p\u003e\u003cp\u003eThe R740xd supports Secure Boot, BIOS recovery from a known-good image, signed firmware updates, and System Erase (full media wipe including drives and SSDs). These are not optional features for FedRAMP, DoD, or financial services environments; the R740xd meets the bar without third-party add-ons.\u003c\/p\u003e\u003cp\u003eFor volume deployments, OpenManage Enterprise gives you fleet-wide firmware management, configuration templates, and compliance reporting. The 14th gen iDRAC9 plus OpenManage stack is mature and well-documented; this is one of the operational advantages of the 14th gen platform over earlier generations.\u003c\/p\u003e\u003ch2\u003ePower and Cooling\u003c\/h2\u003e\u003cp\u003eHot-swap redundant Dell Flex Slot PSUs in 495W, 750W (Platinum and Titanium), 1100W (Platinum), 1600W (Platinum), 2000W, and 2400W tiers. R740xd 12-Bay 3.5\" configurations draw more than equivalent R740 configurations because of the additional spinning drives and (potentially) mid-bay or rear-bay populations.\u003c\/p\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePSU Recommendation\u003c\/th\u003e\n\u003cth\u003eEst. Peak Draw\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight: Silver 4214, 96 GB RAM, 8x 8 TB NL-SAS\u003c\/td\u003e\n\u003ctd\u003e2x 750W Platinum\u003c\/td\u003e\n\u003ctd\u003e~340W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced: Gold 6230, 384 GB RAM, 12x 16 TB NL-SAS\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~580W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy: Gold 6248, 768 GB RAM, 12x 20 TB NL-SAS + 4-bay mid\u003c\/td\u003e\n\u003ctd\u003e2x 1600W Platinum\u003c\/td\u003e\n\u003ctd\u003e~880W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum: Gold 6248, NVDIMM-N, full mid-bay + rear-bay\u003c\/td\u003e\n\u003ctd\u003e2x 2000W Platinum\u003c\/td\u003e\n\u003ctd\u003e~1050W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpin-up current at scale on multi-unit LFF deployments is the under-spec'd PSU trap.\u003c\/strong\u003e Twelve LFF spindles spinning up simultaneously can exceed steady-state draw by 30 to 40 percent for 30 to 60 seconds on a cold boot. The 750W Platinum option is borderline for a fully populated 12-drive cold start; we recommend 1100W Platinum as the floor for any fully populated 12-Bay 3.5\" deployment. For mid-bay populated configurations, 1600W Platinum is the realistic minimum. At rack-level, multiple R740xd chassis booting simultaneously (which happens after a UPS event or a planned maintenance window) is one of the most common causes of breaker trips in storage-dense deployments; coordinate boot sequencing if you have more than three or four chassis on the same PDU.\u003c\/p\u003e\u003cp\u003eCooling is provided by the standard 14th gen 2U fan kit, hot-swap fans, N+1 redundancy. Ambient temperature ceiling for storage-dense configurations is 35°C with standard fans; high-ambient configurations are available for environments above 35°C but we rarely encounter them on customer specs.\u003c\/p\u003e\u003ch2\u003ePhysical Specs \u0026amp; Platform Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 2U rack. Approximate dimensions 86.8 mm x 482.0 mm x 715.5 mm (H x W x D) with bezel. Identical chassis envelope to the R740. Depth fits standard 1000 mm cabinet rails with cable management arm; tighter cabinets may require service offset planning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots in the base 12-Bay 3.5\" configuration, dropping to roughly 6 when mid-bay is populated and further when the rear flex bay variant is chosen. Both full-height and low-profile slots are available depending on riser config (1A \/ 1B \/ 2A \/ 2B); riser choice is order-time locked because field reconfiguration requires chassis disassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParts availability:\u003c\/strong\u003e Excellent through 2030 minimum. The R740xd 12-Bay 3.5\" is one of the highest-volume 14th gen storage SKUs on the secondary market and Dell ProSupport channels remain active in 2026. Common consumables (fans, PSUs, drive caddies, backplane assemblies) are abundant; third-party maintenance for 14th gen Dell is mature and competitive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories we recommend:\u003c\/strong\u003e Dell ReadyRails II sliding rail kit for the R740xd (confirm part number at quote time against your chassis revision and cabinet depth), cable management arm for the 2U envelope, and the Dell LCD bezel for the R740xd 2U chassis (confirm part number at quote time against your chassis revision; the LCD bezel is worth the upgrade on production deployments for at-the-rack diagnostics without firing up a console).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform notes:\u003c\/strong\u003e CPU hot-plug is not supported (CPU swap is a powered-down operation). NVMe bifurcation must be set in BIOS before installing PCIe-attached NVMe carriers; the default BIOS setting does not enable bifurcation. NVDIMM-N has the GPU-shroud and mid-bay compatibility constraint covered in the Memory section. Riser configuration is locked at order time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOur Assessment\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere it excels:\u003c\/strong\u003e Bulk LFF capacity at the best cost-per-TB available on a current-supported Dell platform. The R740xd 12-Bay 3.5\" is our reference configuration for Veeam and Commvault backup targets (12x 16 TB NL-SAS in RAID 60 is the textbook spec we ship most often), vSAN OSA capacity-tier nodes, Ceph OSD nodes, large file servers, media archive and cold storage, and any deployment where 100+ TB of local raw capacity is needed in a single 2U chassis. Mid-bay expansion to 16 LFF or rear-bay expansion to 14 LFF makes it the densest mainstream LFF chassis in the 14th gen Dell lineup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere to look instead:\u003c\/strong\u003e If the workload is random-IOPS-sensitive, NL-SAS 7.2K is the wrong drive class and the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003e24-Bay 2.5\"\u003c\/a\u003e SSD companion is the right answer. If the workload specifically requires native NVMe across all front bays (vSAN ESA, NVMe-oF targets, ultra-low-latency databases), the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion is the dedicated NVMe specialist. If you need GPU support, the 24-Bay 2.5\" SAS\/SATA variant is the only R740xd that supports meaningful GPU configurations; the LFF chassis cannot. If you need maximum SFF density with rear bays, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003e24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e is the 28-SFF maximum-density configuration. If your workload will outlive 2030 or specifically needs current-gen Dell support, the 15th gen R750xd or 16th gen R760xd2 is the right step up and we will tell you so honestly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom line:\u003c\/strong\u003e The R740xd 12-Bay 3.5\" is the default 2U LFF recommendation in our catalog for 2026. The typical buyer is an IT director or storage architect refreshing a backup target, building out a capacity-tier SDS cluster, or consolidating file servers, with a 4 to 6 year deployment horizon and a budget that favors significant TCO savings vs current-generation hardware. The platform is mature, parts are abundant, the failure-mode profile is well-characterized at this generation age, and the supply on the secondary market is the deepest of any 14th gen storage chassis. For that customer profile and that deployment context, this is the configuration we reach for first.\u003c\/p\u003e\u003ch2\u003eWhere the R740xd Fits in 2026\u003c\/h2\u003e\u003cp\u003eThe R740xd is 14th gen Dell PowerEdge (Skylake-SP launch 2017, Cascade Lake refresh 2019). In 2026 it is mature, well-supported on the secondary market, and our highest-velocity storage-dense 14th gen SKU. Dell ProSupport on the R740xd is approaching end-of-extended-support; third-party maintenance is the standard production support path in 2026, and the third-party support market for 14th gen Dell is competitive and well-staffed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 13th gen R730xd (Broadwell, 2014):\u003c\/strong\u003e Skip the R730xd unless you have a hard cost ceiling and a short deployment horizon. The R740xd brings Skylake-SP or Cascade Lake (vs Broadwell), DDR4 (vs DDR3), iDRAC9 with Silicon Root of Trust (R730xd is iDRAC8 with no Root of Trust), and a 4 to 6 year longer parts availability runway.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 15th gen R750xd (Ice Lake, 2021):\u003c\/strong\u003e The R750xd adds PCIe Gen4 (doubled bandwidth, material for NVMe-heavy or 100 GbE deployments), DDR4-3200 memory, 32 DIMM slots, and 3rd Gen Xeon Scalable. If your workload is NVMe-heavy or memory-bandwidth-bound, R750xd is the upgrade path. For bulk LFF capacity at lowest cost, the R740xd is still competitive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 16th gen R760xd2 (Sapphire \/ Emerald Rapids, 2023-2024):\u003c\/strong\u003e The R760xd2 is the current production storage-dense 2U: DDR5-5600, PCIe Gen5, up to 64 cores per socket on Emerald, BOSS-N1 NVMe boot, and PERC H965i tri-mode NVMe RAID. For workloads in production past 2030 or specifically needing current-gen Dell support contracts, the R760xd2 is the right call. For volume bulk storage at a fraction of the cost, the R740xd 12-Bay 3.5\" still wins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. HPE counterpart:\u003c\/strong\u003e The cross-vendor analog is the HPE ProLiant DL380 Gen10 12 LFF chassis. Same 2U Purley dual-socket platform vocabulary, comparable management (iLO 5 in place of iDRAC9), comparable PSU and PCIe envelope. The Dell-side advantage in 2026 is depth of secondary-market supply on the storage-dense variant and the maturity of the OpenManage tooling for fleet management; the HPE-side advantage is iLO 5 if your fleet is HPE-standardized. The DL380 Gen10 family caps at 12 LFF front bays with no direct HPE equivalent to the R740xd's mid-bay or rear-bay expansion to 18 LFF, which is one of the practical reasons LFF-density buyers end up on the Dell side of the cross-vendor comparison.\u003c\/p\u003e\u003ch2\u003eHonest Limitations\u003c\/h2\u003e\u003cp\u003eEvery platform has tradeoffs. Here is what we tell buyers upfront on the R740xd 12-Bay 3.5\":\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo meaningful GPU support on the LFF chassis.\u003c\/strong\u003e The mid-bay and rear-bay options consume the PCIe riser slots that would host GPU cards. If you need GPU plus bulk LFF storage, this is not the right chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe slot count drops when mid-bay or rear-bay is populated.\u003c\/strong\u003e Base 12-Bay 3.5\" gives up to 8 PCIe slots. Mid-bay populated drops to roughly 6 effective slots. Rear-bay populated (the +RFB variant) drops further. Confirm your PCIe card list before locking the chassis configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVDIMM-N has chassis compatibility constraints.\u003c\/strong\u003e NVDIMM-N battery on GPU shroud is incompatible with full-length GPUs on riser 2 and with the 2.5\" mid-drive tray. NVDIMM-N + 3.5\" mid-bay is supported; NVDIMM-N + 2.5\" mid-bay is not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAID 5 is unsafe on large-capacity LFF.\u003c\/strong\u003e 16 TB and 20 TB drive rebuilds on a degraded RAID 6 take 24 to 36 hours under load. RAID 5 on multi-TB NL-SAS is not configured by us; RAID 6 or RAID 60 only above 4 TB per drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe Gen3 ceiling.\u003c\/strong\u003e All slots and all backplane lanes are PCIe 3.0. NVMe-heavy workloads, 100 GbE adapters at line rate, and accelerators with PCIe Gen4 host requirements will be bottlenecked. The upgrade path is 15th gen (R750xd) for Gen4 or 16th gen (R760xd2) for Gen5.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory speed drops at 2 DPC on V2.\u003c\/strong\u003e 2933 MT\/s at 1 DPC, 2666 MT\/s at 2 DPC on Cascade Lake. Full population is still the right call for SDS workloads where capacity beats marginal speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-TDP heatsink mandatory above 150W.\u003c\/strong\u003e Storage-dense chassis configurations also run thermally hotter; plan accordingly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e Don't spec single-socket on this chassis without a deliberate reason.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBay configuration is order-time locked.\u003c\/strong\u003e You cannot field-upgrade a 12-Bay 3.5\" R740xd to a 24-Bay 2.5\" by adding a backplane; the front bay cage is part of the physical chassis. Pick the right front-bay variant at order time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpin-up current at scale.\u003c\/strong\u003e Multi-unit LFF deployments need PDU and UPS sizing that accounts for simultaneous cold-boot spin-up surge, which can exceed steady-state by 30 to 40 percent for 30 to 60 seconds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWorkload Fit\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eWorkload\u003c\/th\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVeeam \/ Commvault backup target\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eThe canonical config: 12x 16 TB NL-SAS, RAID 60, H740P.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeph OSD nodes\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eHBA330 + 12 LFF, optional SSD cache tier in mid-bay.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003evSAN OSA capacity tier\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eCapacity-tier nodes with 12 NL-SAS + 2-4 SFF cache.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLarge file server\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eRAID 6 NL-SAS, NDMP backup integration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia archive \/ cold storage\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003e20 TB NL-SAS drives, RAID 6 or RAID 60.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSQL Server with bulk cold data\u003c\/td\u003e\n\u003ctd\u003eAcceptable\u003c\/td\u003e\n\u003ctd\u003eUse SSD tier or NVMe for hot data; LFF for cold.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMid-density virtualization\u003c\/td\u003e\n\u003ctd\u003eMarginal\u003c\/td\u003e\n\u003ctd\u003eR740 16-Bay 2.5\" is usually the better call.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRandom-IOPS-sensitive workloads\u003c\/td\u003e\n\u003ctd\u003eWrong drive class\u003c\/td\u003e\n\u003ctd\u003eNL-SAS 7.2K is slow on random. Use 24-Bay 2.5\" SSD variant.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU workloads\u003c\/td\u003e\n\u003ctd\u003eNot supported on LFF\u003c\/td\u003e\n\u003ctd\u003eUse 24-Bay 2.5\" SAS\/SATA variant or T640 tower.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront NVMe\u003c\/td\u003e\n\u003ctd\u003eNot supported on LFF\u003c\/td\u003e\n\u003ctd\u003eUse 24-Bay 2.5\" NVMe companion.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhere to Look Instead\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-2-bay-lff-rfb-build-your-own\"\u003eR740xd 12-Bay 3.5\" + 2-Bay LFF RFB\u003c\/a\u003e:\u003c\/strong\u003e Same front bays as this page, plus 2 rear-mounted 3.5\" bays. Choose when you need 14 LFF total in a single chassis and can accept the reduced PCIe slot count from the rear-riser consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003eR740xd 24-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e SFF density companion. Choose for SDS at scale with SSDs, performance-sensitive virtualization, or when GPU support is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003eR740xd 24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e:\u003c\/strong\u003e Maximum-density SFF variant. 28 SFF total. Choose when you need maximum SFF in a single chassis and can accept reduced PCIe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003eR740xd 24-Bay 2.5\" NVMe\u003c\/a\u003e:\u003c\/strong\u003e All-NVMe specialist. Choose for NVMe-required workloads (vSAN ESA, NVMe-oF targets, ultra-low-latency databases). Different controller architecture (no hardware RAID on the data path); see the variant page.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740-16-bay-2-5-chassis\"\u003eR740 16-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e The compute-balanced 2U companion. Choose when 8 to 16 front bays is sufficient and you do not need mid-bay or rear-bay expansion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReady to Configure?\u003c\/h2\u003e\u003cp\u003eTell us your workload, target CPU class, memory capacity, drive configuration (capacity per drive, RAID level, mid-bay or rear-bay add-ons, hot-spare strategy), network bandwidth requirements, and quantity. Our account team will put together a tailored quote within 24 hours. Not sure if the 12-Bay 3.5\" is the right variant? Tell us about your workload and we will recommend the right R740xd companion, steer you to the R740 family if storage density is not the constraint, or step you up to 15th or 16th gen if the data supports it. That conversation is part of the quote process.\u003c\/p\u003e\u003cp\u003eCall \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty, runs through our \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in with full surface-scan and SMART validation on every drive bay, and qualifies for volume pricing at \u003cstrong\u003e5 units\u003c\/strong\u003e and above. \u003ca href=\"\/pages\/quote-cart\"\u003eRequest a Quote\u003c\/a\u003e | \u003ca href=\"\/pages\/contact\"\u003eContact our account team\u003c\/a\u003e\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":45951275434183,"sku":"BP-011937","price":1332.13,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/files\/server-design-lab-dell-poweredge-r740xd-12-bay-35-drives-304318.png?v=1765539696"},{"product_id":"dell-poweredge-r740xd-24-bay-2-5-chassis","title":"Dell PowerEdge R740xd 24-Bay 2.5\" Drives [14th Gen]","description":"\u003cp\u003eThe R740xd 24-Bay 2.5\" is the SFF density companion in the R740xd family and the only R740xd variant that meaningfully supports GPU. Twenty-four hot-swap 2.5\" front bays via a SAS expander backplane, optional mid-bay or rear flex bay expansion, flex-zoning to bring 8 to 12 NVMe drives into the SAS\/SATA front bays as a hybrid mix, and the GPU envelope the LFF variants do not have. The Intel Purley dual-socket compute platform is identical to the 12-Bay 3.5\" reference page; what's different is the front backplane (SFF + SAS expander instead of LFF direct-attach) and the riser layout that opens up GPU support.\u003c\/p\u003e\u003cp\u003eFor the IT director sizing a vSAN OSA all-flash node, a Ceph all-flash OSD node, a database server with a local SSD tier, a VDI host with vGPU, or any high-IOPS SDS deployment where SSDs are the right drive class, this is the R740xd configuration we reach for. For bulk LFF capacity at lowest cost-per-TB the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\" reference page\u003c\/a\u003e is the cleaner spec; for all-NVMe across all front bays the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion is the dedicated NVMe specialist. The variant decision usually comes down to drive class and GPU requirements; the When 24-Bay 2.5\" Is the Right Choice section below covers it.\u003c\/p\u003e\u003cp\u003eTo configure a build, call \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd we ship runs through a \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in across every memory channel, every PCIe slot, every drive bay including mid-bay positions if equipped, and every GPU slot under load for GPU-equipped builds. Every unit ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty and 1-Year, 2-Year, and 3-Year Premium options at quote time. Volume pricing applies at \u003cstrong\u003e5 units\u003c\/strong\u003e and above; tell us your workload and quantity and we will steer you to the right R740xd variant or to an adjacent platform if the data supports it.\u003c\/p\u003e\u003ch2\u003eWhen 24-Bay 2.5\" Is the Right Choice\u003c\/h2\u003e\u003cp\u003eThe 24-Bay 2.5\" earns its place in the R740xd family on three things: SFF density (24 SSDs front, expandable to 28 with rear flex bay), GPU support (the only R740xd variant that has it), and drive-class flexibility (SAS + SATA + flex-zone NVMe in one chassis). We pick it for high-IOPS workloads, for SDS at scale on flash, and for any 2U deployment where compute density matters as much as storage density.\u003c\/p\u003e\u003cp\u003ePick the 24-Bay 2.5\" when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe workload is random-IOPS sensitive and the 12-Bay 3.5\" with NL-SAS will not deliver the IOPS profile\u003c\/li\u003e\n\u003cli\u003eYou need GPU support on an R740xd-class chassis (1-3 double-width 300W GPUs, or 1-6 single-width 150W GPUs)\u003c\/li\u003e\n\u003cli\u003eYou want a hybrid SAS\/SATA + NVMe mix via flex-zoning (typically 16 SAS\/SATA + 8 NVMe, or 12 + 12)\u003c\/li\u003e\n\u003cli\u003eYour single-chassis SFF capacity target is 100 to 180 TB raw (24 x 7.68 TB SAS SSD = 184 TB; 15.36 TB SSD ladders push higher)\u003c\/li\u003e\n\u003cli\u003eYou are building vSAN OSA all-flash, Ceph all-flash OSD, large database servers with local SSD tier, or VDI with high user density\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePick a different R740xd variant when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBulk capacity at lowest cost-per-TB matters more than IOPS (the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\"\u003c\/a\u003e with NL-SAS is the right call)\u003c\/li\u003e\n\u003cli\u003eYou need all-NVMe across all 24 bays with native PCIe-attached backplane (the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion is the dedicated NVMe specialist)\u003c\/li\u003e\n\u003cli\u003eYou need 28 SFF in a single chassis with rear bays (the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003e+ 4-Bay RFB\u003c\/a\u003e companion is the maximum-SFF-density variant)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eStorage - 24x 2.5\" SFF Front Bays\u003c\/h2\u003e\u003cp\u003eTwenty-four hot-swap 2.5\" SAS\/SATA front bays on a SAS expander backplane. The SAS expander routes all 24 bays through a single PERC connection, which is more efficient than direct-attach (direct-attach would require three PERCs for 24 drives) but adds the expander firmware as a troubleshooting layer if you hit obscure bay-enumeration issues; we firmware-check the expander as part of burn-in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFlex-zoning for NVMe:\u003c\/strong\u003e The 24-bay SAS\/SATA backplane supports flex-zoning where some bays are routed off the SAS expander and onto PCIe-attached NVMe controller cards. Common configurations:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 SAS\/SATA + 8 NVMe:\u003c\/strong\u003e Typical for SQL Server with NVMe hot tier and SAS SSD warm tier, or for vSAN OSA with NVMe cache and SAS SSD capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 SAS\/SATA + 12 NVMe:\u003c\/strong\u003e Maximum NVMe in flex-zoning on this chassis. If you need more than 12 NVMe drives, route to the dedicated NVMe companion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFlex-zoning NVMe drives are not on the PERC; they are direct PCIe-attached and present individually to the OS. Hardware NVMe RAID is not available on 14th gen (the H740P does not RAID NVMe). For NVMe RAID, the options are Intel VROC (chipset-level, BIOS-enabled, has its own configuration constraints), ZFS \/ mdadm \/ Storage Spaces software RAID, or an SDS stack like vSAN that handles redundancy at the layer above the drives. We are direct about this at quote time: if hardware NVMe RAID is the requirement, 14th gen is not the platform and 16th gen R760xd2 with H965i tri-mode is the upgrade path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMid-bay expansion:\u003c\/strong\u003e Optional 4x 2.5\" mid-drive tray adds four additional SFF bays inside the chassis, bringing front+mid to 28 SFF. The 2.5\" mid-bay supports NVMe in the mid position, which combined with flex-zoning gives you up to 16 NVMe drives on this chassis (12 flex-zone front + 4 mid-bay NVMe). Critical constraint: \u003cstrong\u003emid-bay and full GPU support are mutually exclusive\u003c\/strong\u003e because the mid-bay assembly consumes the GPU riser slot. Pick GPU OR mid-bay, not both.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRear flex bay (RFB) option:\u003c\/strong\u003e The 24-Bay 2.5\" can be configured with a 4x 2.5\" rear flex bay, bringing front+rear to 28 SFF total. That configuration is sold as a separate SKU; route to the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003e24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e companion page if rear bays are in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDrive options we quote:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS SSD Read-Intensive:\u003c\/strong\u003e 1.92 TB, 3.84 TB, 7.68 TB. Volume sweet spot for SDS deployments. 15.36 TB available at premium pricing; volume capacity buyers typically land on the 7.68 TB tier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS SSD Mixed-Use:\u003c\/strong\u003e 1.92 TB, 3.84 TB. For write-intensive workloads (cache tier, OLTP databases, vSAN cache disks).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSATA SSD Mixed-Use:\u003c\/strong\u003e 1.92 TB, 3.84 TB. Cost-effective for general VM storage where SAS premium is not justified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10K SAS HDD:\u003c\/strong\u003e 1.2 TB, 2.4 TB. For mixed deployments with moderate IOPS needs at lower cost per TB than SSD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU.2 NVMe (flex-zoning):\u003c\/strong\u003e 1.92 TB, 3.84 TB, 7.68 TB. Up to 12 slots in flex-zoning configurations. RAID requires software (Intel VROC, ZFS, mdadm, or SDS layer).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRAID guidance for SFF SSD arrays:\u003c\/strong\u003e SSDs handle RAID 5 substantially better than spinning disk because the rebuild window is short (a 3.84 TB SSD rebuilds in 2 to 4 hours under load, versus 24 to 36 hours for a 16 TB NL-SAS) and the unrecoverable-read-error rate is lower. RAID 5 is acceptable for SSD arrays up to 6 drives. Above 6 drives we recommend RAID 6 for the second-failure margin during rebuild. RAID 10 is the right call for write-heavy workloads where the parity-write penalty is unacceptable. For SDS deployments (vSAN OSA, Ceph), use HBA330 in pass-through mode and let the SDS layer handle redundancy at its own level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBoot:\u003c\/strong\u003e BOSS-S1 (Boot Optimized Storage Solution, dual mirrored M.2 SATA SSDs on a dedicated PCIe card, hardware RAID 1, cold-swap). Standard 14th gen boot device. We add it to every R740xd BOM by default; reserve all 24 front bays for the workload.\u003c\/p\u003e\u003ch2\u003eStorage Controllers\u003c\/h2\u003e\u003cp\u003eThe full 14th gen PERC family is available on the R740xd 24-Bay 2.5\" via the Mini-PERC slot. Controller selection is workload-driven: SDS deployments want HBA pass-through, transactional workloads want H740P, mixed and read-heavy workloads can sit at H730P.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H740P (8 GB NV cache, battery-backed):\u003c\/strong\u003e Production storage default for SAS\/SATA workloads on this chassis. The 8 GB non-volatile cache and battery backing survive a power event without UPS dependency. For database servers, mixed I\/O workloads, or any SAS SSD array where the controller cache is the performance differentiator, H740P is the right call. Note that H740P does not RAID NVMe on 14th gen; flex-zone NVMe drives must be on software RAID or pass-through.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730P (2 GB cache, battery-backed):\u003c\/strong\u003e Solid general-purpose choice for mixed or read-heavy SAS\/SATA workloads where the 8 GB cache of the H740P is over-spec. Lower price point, same drop-in form factor. For general-purpose virtualization or file-server duty on SSD, H730P is often acceptable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730 (1 GB cache, battery-backed):\u003c\/strong\u003e 13th-gen carryover via Mini-PERC slot compatibility. Viable on the R740xd 24-Bay 2.5\" but generally a downgrade vs the H730P or H740P on Cascade Lake workloads. We see this controller frequently on the secondary market because 13th-gen-to-14th-gen field upgrades carried it forward; refurbished units sometimes ship with the H730 already installed. Quote when budget is the hard constraint and write performance on SAS\/SATA is not load-bearing; quote H730P or H740P otherwise. Not a primary recommendation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H330 (no cache):\u003c\/strong\u003e Entry-tier hardware RAID. Not appropriate for production SFF density deployments on this chassis. Listed for completeness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHBA330 (pass-through HBA):\u003c\/strong\u003e Required for software-defined storage stacks (vSAN OSA, Storage Spaces Direct, Ceph, ZFS). The HBA presents disks directly to the OS or hypervisor without any RAID abstraction. The 24-Bay 2.5\" is the configuration we ship most often as a vSAN OSA all-flash node and as a Ceph all-flash OSD node; HBA330 is the correct controller for those deployments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H840 (external):\u003c\/strong\u003e For external SAS enclosure connectivity when scale-out beyond 28 internal bays is needed in a single chassis.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eS140 (software RAID via chipset):\u003c\/strong\u003e Dev\/test and light workloads only. Not a production recommendation.\u003c\/p\u003e\u003ch2\u003eProcessors\u003c\/h2\u003e\u003cp\u003eThe R740xd 24-Bay 2.5\" supports 1st Generation Intel Xeon Scalable (Skylake-SP, 2017) and 2nd Generation Intel Xeon Scalable (Cascade Lake-SP, 2019) in the same LGA 3647 socket. Drop-in compatible, no BIOS forklift if firmware is current. Same V1 \/ V2 socket compatibility story as the rest of the 14th gen family.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCPU selection is workload-dependent on this chassis more than on the LFF variants\u003c\/strong\u003e because the workloads run on the 24-Bay 2.5\" tend to be compute-active rather than storage-throughput-bound. Our recommendations:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6230 (20 cores, 2.1 GHz, 125W TDP):\u003c\/strong\u003e Sweet spot for general SDS and mid-density virtualization. Forty cores total in a dual-socket build covers most vSAN and Ceph deployments with headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248 (20 cores, 2.5 GHz, 150W TDP):\u003c\/strong\u003e When the chassis hosts a database server with active OLTP or a high-VM-density VDI cluster. Higher clock speed than the 6230 for latency-sensitive workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248R (24 cores, 3.0 GHz, 205W TDP):\u003c\/strong\u003e The high-clock, high-core option for transactional databases and per-core-licensed workloads (SQL Server Enterprise, Oracle). Requires the high-performance heatsink, see below.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatinum 8280 (28 cores, 2.7 GHz, 205W TDP):\u003c\/strong\u003e When core count drives the licensing or capacity planning. Most R740xd 24-Bay 2.5\" workloads do not need Platinum-class; we quote it on specific request.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHeatsink mismatch above 150W is the trap.\u003c\/strong\u003e Any processor above 150W TDP requires the high-performance heatsink. The standard heatsink will thermally throttle under sustained load. This trap is more common on the 24-Bay 2.5\" than on the LFF variants because the higher-TDP CPUs (6248R, Platinum) are more common on the workloads that pick this chassis. Confirm the heatsink at quote time against the CPU TDP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e A single-socket R740xd 24-Bay 2.5\" leaves the second CPU's 12 DIMM slots unreachable, half the PCIe lanes unavailable (which is particularly costly on this chassis given the flex-zone NVMe and GPU consumption of PCIe lanes), and the second NDC slot inactive. Single-socket on a GPU-equipped 24-Bay 2.5\" defeats most of the point of choosing this chassis; we will steer customers away from single-socket builds here in almost every case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGPU thermal note:\u003c\/strong\u003e Triple-double-width-GPU configurations push the chassis thermal envelope hard. Standard fans are sufficient up to ambient 30°C; for racks running warmer, confirm fan configuration and ambient temperature at quote time.\u003c\/p\u003e\u003ch2\u003eMemory\u003c\/h2\u003e\u003cp\u003e24 DDR4 DIMM slots: 12 per CPU, 6 channels per CPU, 2 DIMMs per channel. Supports RDIMM up to 128 GB per DIMM, LRDIMM up to 256 GB per DIMM. Maximum capacity 3 TB with 128 GB RDIMMs at 2 DPC, 6 TB with 256 GB LRDIMMs, up to 7.68 TB combined with Intel Optane PMem 100-series on Cascade Lake L-series CPUs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMemory speed by population and generation:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkylake (V1):\u003c\/strong\u003e DDR4-2666 at 1 DPC, DDR4-2666 at 2 DPC (no penalty for full population)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) Gold 6200 \/ 5222 SKUs:\u003c\/strong\u003e DDR4-2933 at 1 DPC, drops to DDR4-2666 at 2 DPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) other SKUs:\u003c\/strong\u003e DDR4-2666 at any population\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRDIMM vs LRDIMM:\u003c\/strong\u003e For most 24-Bay 2.5\" workloads, RDIMM is the right choice. 32 GB and 64 GB RDIMMs are abundant on the secondary market. LRDIMM (load-reduced) becomes the right call when you specifically need 128 GB or 256 GB per DIMM to hit 1.5 TB or higher, which is more common on this chassis than on the LFF variants because high-VM-density and large-database workloads push memory capacity harder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWorkload sizing guidance for the 24-Bay 2.5\" specifically:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evSAN OSA all-flash:\u003c\/strong\u003e 384 to 768 GB is the typical range. vSAN benefits significantly from memory for the cache layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeph all-flash OSD:\u003c\/strong\u003e Ceph recommends 4 GB per OSD as a floor; for 24 SSD OSDs that is 96 GB just for Ceph, plus OS and overhead. 192 to 384 GB is honest.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatabase server (SQL, Oracle):\u003c\/strong\u003e Spec memory generously; database buffer pools eat what you give them. 768 GB to 1.5 TB is typical for serious workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVDI with vGPU:\u003c\/strong\u003e 384 to 768 GB for 30 to 50 user sessions, depending on profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-density virtualization without GPU:\u003c\/strong\u003e 768 GB to 1.5 TB for 80 to 150 VM density.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNVDIMM-N:\u003c\/strong\u003e Up to 12 NVDIMM-N modules (16 GB each, 192 GB total). Important chassis-specific constraint on the 24-Bay 2.5\": if the NVDIMM-N battery is installed on the GPU shroud, full-length GPUs are not supported on riser 2, and the 2.5\" mid-drive tray is not supported. NVDIMM-N + GPU is one of the configurations that most often runs into BOM conflicts at quote time; confirm if both are in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVMe bifurcation BIOS setting:\u003c\/strong\u003e Flex-zone NVMe and PCIe-attached NVMe carriers require bifurcation enabled in BIOS before the drives will enumerate. Default BIOS does not enable bifurcation. We set this at burn-in for any R740xd shipped with flex-zone NVMe or PCIe NVMe; if you are commissioning a unit from another source, check the BIOS first.\u003c\/p\u003e\u003ch2\u003eNetworking and PCIe Expansion\u003c\/h2\u003e\u003cp\u003eThe R740xd uses Dell's Network Daughter Card (NDC) mezzanine standard. The NDC slot is dedicated and does not consume a PCIe slot. NDC options are factory-installed or field-swappable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNDC port options:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 1 GbE:\u003c\/strong\u003e Base option. Acceptable for management-network-only. Not a recommendation for any SDS or SFF-density workload because the network becomes the bottleneck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 10 GbE + 2x 1 GbE:\u003c\/strong\u003e Pragmatic mixed option for general virtualization where 10 GbE is sufficient bandwidth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 10 GbE (Intel X710 or Broadcom 57414):\u003c\/strong\u003e Baseline for VDI and general virtualization deployments. Four ports give bonding flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 25 GbE (Mellanox ConnectX-4 Lx):\u003c\/strong\u003e Our standard recommendation for SDS on this chassis. vSAN OSA all-flash, Ceph all-flash, and Storage Spaces Direct all benefit materially from 25 GbE over 10 GbE; the east-west replication traffic on all-flash SDS clusters saturates 10 GbE quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e100 GbE:\u003c\/strong\u003e Not available as NDC. If 100 GbE is the requirement, it goes in a PCIe slot (Mellanox ConnectX-5 dual-port 100 GbE is the right card for this platform; ConnectX-6 needs PCIe Gen4 which the R740xd cannot provide). Note that 100 GbE in a PCIe slot competes with GPU and flex-zone NVMe controllers for slot budget; spec the network and the GPUs together at quote time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots in the base 24-Bay 2.5\" configuration (no mid-bay, no GPU, no flex-zone NVMe). The PCIe slot budget is consumed by, in rough order of priority: flex-zone NVMe controller cards, GPUs, 100 GbE adapters, additional HBAs for external storage. A fully-loaded 24-Bay 2.5\" with 12 NVMe flex-zoned, 2 GPUs, and dual-port 100 GbE is genuinely tight on PCIe budget; we work through the slot map at quote time and tell you what does not fit.\u003c\/p\u003e\u003ch2\u003eGPU Support\u003c\/h2\u003e\u003cp\u003eThe 24-Bay 2.5\" is the GPU-capable R740xd. This is one of the two main reasons to pick this chassis over the 12-Bay 3.5\" LFF variant (the other being SFF SSD density).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGPU envelope on the 24-Bay 2.5\":\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUp to \u003cstrong\u003e3 double-width 300W GPUs\u003c\/strong\u003e. Common cards we deploy: NVIDIA V100 PCIe (16 GB or 32 GB), NVIDIA T4 in double-wide configurations, NVIDIA A100 PCIe (40 GB or 80 GB) via supported risers. The A100 PCIe is the high-end CUDA \/ ML training card; V100 is the volume secondary-market option.\u003c\/li\u003e\n\u003cli\u003eUp to \u003cstrong\u003e6 single-width 150W GPUs\u003c\/strong\u003e. NVIDIA T4 standard (16 GB, 70W, single-width low-profile), NVIDIA P4 (older but still deployed for inference). T4 in 4-card or 6-card configurations is the vGPU host workhorse for VDI.\u003c\/li\u003e\n\u003cli\u003eUp to \u003cstrong\u003e4 single-width FPGAs\u003c\/strong\u003e or \u003cstrong\u003e3 double-width FPGAs\u003c\/strong\u003e. Intel Stratix 10 PAC and Xilinx Alveo are the cards we see most often on this chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVMe flex-zone configurations limit GPU count to 2 maximum\u003c\/strong\u003e, because flex-zone NVMe controller cards consume the riser slot that would otherwise host the third GPU. NVMe + 2 GPUs is supported; NVMe + 3 GPUs is not.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRiser configuration matters.\u003c\/strong\u003e GPU support requires specific riser configurations (riser 1A + 2A + 3A or 1B + 2A + 3A are the typical GPU-equipped configurations). Mid-bay consumes the GPU riser slot, so mid-bay and GPU are mutually exclusive. NVDIMM-N battery on the GPU shroud blocks full-length GPUs on riser 2. Confirm GPU + memory + mid-bay configurations at quote time; this is the BOM where we most often catch conflicts before shipping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGPU enablement kit:\u003c\/strong\u003e GPU-equipped configurations require an enablement kit consisting of auxiliary power cables for 8-pin and 6-pin GPU power, GPU brackets, and riser-specific cabling. We add the enablement kit to every R740xd GPU BOM by default. If you source GPUs separately after purchase, the enablement kit is sold separately and is the part that most often goes missing on used-market R740xd builds.\u003c\/p\u003e\u003ch2\u003eManagement - iDRAC9 Generation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eiDRAC9 Enterprise is the production spec.\u003c\/strong\u003e Full remote KVM with HTML5 console, virtual media for ISO mounting, group management via OpenManage Enterprise, Lifecycle Controller for firmware updates without OS involvement, Quick Sync 2 wireless management for at-the-rack diagnostics. Express tier is insufficient for unattended deployment; we spec Enterprise on every R740xd 24-Bay 2.5\" BOM by default. For GPU-equipped builds, iDRAC9 also handles GPU health monitoring via the Dell GPU agent.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSilicon Root of Trust\u003c\/strong\u003e via the Intel platform. TPM 2.0 module supported. Cryptographically signed firmware verification at boot. Meets HIPAA, PCI DSS, CMMC, and federal civilian compliance requirements.\u003c\/p\u003e\u003cp\u003eSecure Boot, BIOS recovery from known-good image, signed firmware updates, and System Erase (full media wipe including drives and SSDs). For FedRAMP, DoD, or financial services environments, this chassis clears the bar without third-party add-ons. For volume deployments, OpenManage Enterprise handles fleet-wide firmware management, configuration templates, and compliance reporting.\u003c\/p\u003e\u003ch2\u003ePower and Cooling\u003c\/h2\u003e\u003cp\u003eHot-swap redundant Dell Flex Slot PSUs: 495W, 750W (Platinum and Titanium), 1100W Platinum, 1600W Platinum, 2000W, 2400W. SFF SSD configurations draw less idle power than LFF NL-SAS (SSDs are 2 to 4W idle vs 8 to 12W for spinning drives), but GPU configurations push total draw substantially higher than any LFF deployment.\u003c\/p\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePSU Recommendation\u003c\/th\u003e\n\u003cth\u003eEst. Peak Draw\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight: Silver 4214, 96 GB RAM, 12x SSD, no GPU\u003c\/td\u003e\n\u003ctd\u003e2x 750W Platinum\u003c\/td\u003e\n\u003ctd\u003e~310W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced: Gold 6230, 384 GB RAM, 24x SSD, no GPU\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~560W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy SDS: Gold 6248, 768 GB RAM, 24x SSD, 2x 25 GbE\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~720W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU: Gold 6248, 384 GB RAM, 12x SSD, 3x 300W GPU\u003c\/td\u003e\n\u003ctd\u003e2x 2000W Platinum\u003c\/td\u003e\n\u003ctd\u003e~1450W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU + flex-zone NVMe: Gold 6248R, 768 GB, 16x SSD + 8x NVMe, 2x 300W GPU\u003c\/td\u003e\n\u003ctd\u003e2x 2400W Platinum\u003c\/td\u003e\n\u003ctd\u003e~1650W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eGPU peak-draw trap:\u003c\/strong\u003e Triple 300W GPU configurations can spike well above the 900W aggregate GPU draw because of simultaneous CPU + memory + drive draw under load. The 2000W Platinum PSU is the realistic minimum for triple-GPU configurations; we recommend 2400W for spike-handling margin. At rack level, multiple GPU-equipped chassis on the same PDU is one of the most common causes of breaker trips in dense compute deployments; coordinate PDU sizing with the rack design at quote time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpin-up current at scale on multi-unit SSD deployments:\u003c\/strong\u003e Less material than on LFF spinning disk (SSDs do not have a mechanical spin-up surge), but flex-zone NVMe drives initialize aggressively at power-on and 16 to 24 NVMe drives simultaneously can briefly spike. Still meaningfully easier to size than the equivalent LFF deployment.\u003c\/p\u003e\u003cp\u003eCooling is the standard 14th gen 2U fan kit, hot-swap fans, N+1 redundancy. GPU-equipped configurations benefit from the high-performance fan kit; we add it by default on triple-GPU builds.\u003c\/p\u003e\u003ch2\u003ePhysical Specs \u0026amp; Platform Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 2U rack. Approximate dimensions 86.8 mm x 482.0 mm x 715.5 mm (H x W x D) with bezel. Identical chassis envelope to the 12-Bay 3.5\" reference page and to the R740 compute companion. Depth fits standard 1000 mm cabinet rails with cable management arm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots in the base 24-Bay 2.5\" configuration. Slot budget is tighter in practice than on the LFF variants because flex-zone NVMe controllers, GPUs, 100 GbE adapters, and additional HBAs all compete for the same slots. Riser configurations 1A \/ 1B \/ 2A \/ 2B and 3A trade slot count, GPU support, and rear-bay support; riser choice is order-time locked because field reconfiguration requires chassis disassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParts availability:\u003c\/strong\u003e Excellent through 2030 minimum. The 24-Bay 2.5\" is one of the highest-volume 14th gen storage SKUs on the secondary market and Dell ProSupport channels remain active in 2026. Third-party maintenance for 14th gen Dell is mature and competitive. GPU support kits and risers are abundant on the secondary market.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories we recommend:\u003c\/strong\u003e Dell ReadyRails II sliding rail kit for the R740xd (confirm part number at quote time against your chassis revision and cabinet depth), cable management arm for the 2U envelope, Dell LCD bezel for the R740xd 2U chassis (confirm part number at quote time against your chassis revision), and the GPU enablement kit for GPU-equipped configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform notes:\u003c\/strong\u003e CPU hot-plug is not supported (CPU swap is a powered-down operation). NVMe bifurcation must be set in BIOS before installing flex-zone NVMe or PCIe-attached NVMe carriers. NVDIMM-N has the GPU-shroud constraint covered in Memory. Riser configuration is locked at order time. SAS expander backplane firmware should be verified at intake for refurbished units.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOur Assessment\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere it excels:\u003c\/strong\u003e Maximum SFF density on a 14th gen Dell platform combined with the only meaningful GPU envelope in the R740xd family. vSAN OSA all-flash nodes (24 SSDs in HBA330 pass-through, vSAN handles redundancy) and Ceph all-flash OSD nodes are the configurations we ship most often on this chassis. Database servers with local SSD tier (Oracle, SQL Server with H740P for write cache). High-density virtualization with 80 to 150 VMs per host. VDI with vGPU at 30 to 50 user density. GPU compute up to 3 double-width 300W cards for CUDA, ML inference, transcoding, or rendering pipelines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere to look instead:\u003c\/strong\u003e If the workload is capacity-driven on bulk storage at lowest cost-per-TB, the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\"\u003c\/a\u003e with NL-SAS is the right call and the 24-Bay 2.5\" is the wrong drive class. If you need all-NVMe across all 24 bays with a native PCIe-attached backplane (vSAN ESA, all-NVMe Ceph, NVMe-oF target), the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion is the dedicated specialist. If you need 28 SFF in a single chassis, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003e24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e companion adds 4 rear bays for that purpose. If hardware NVMe RAID is the requirement, 14th gen is not the platform; 16th gen R760xd2 with PERC H965i tri-mode is the upgrade path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom line:\u003c\/strong\u003e The R740xd 24-Bay 2.5\" is the most versatile R740xd variant in our catalog. It hits SFF density, GPU support, and flex-zone NVMe in a single chassis at a price point that is hard to match on current-generation hardware. The typical buyer is an architect refreshing an all-flash SDS cluster, building out a database tier, or sizing a GPU-equipped compute host with 4 to 6 productive years of expected service. We often steer buyers from the 12-Bay 3.5\" to the 24-Bay 2.5\" at quote time when the IOPS profile of their workload makes NL-SAS the wrong drive class; that conversation is part of how we earn the deployment.\u003c\/p\u003e\u003ch2\u003eWhere the R740xd Fits in 2026\u003c\/h2\u003e\u003cp\u003eThe R740xd is 14th gen Dell PowerEdge (Skylake-SP 2017, Cascade Lake 2019). Mature, well-supported on the secondary market, our highest-velocity 14th gen SKU. Dell ProSupport on the R740xd is approaching end-of-extended-support; third-party maintenance is the standard production support path in 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 13th gen R730xd:\u003c\/strong\u003e Skip unless you have a hard cost ceiling. The R740xd brings Skylake or Cascade Lake (vs Broadwell), DDR4 (vs DDR3), iDRAC9 with Silicon Root of Trust, and a longer parts runway. GPU support is also materially better on the R740xd than on the R730xd because of the riser improvements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 15th gen R750xd (Ice Lake, 2021):\u003c\/strong\u003e Adds PCIe Gen4 (doubled bandwidth, material for NVMe and 100 GbE), DDR4-3200, 32 DIMM slots, 3rd Gen Xeon Scalable. If your workload is NVMe-heavy, GPU-heavy with PCIe Gen4 cards (A100 80GB PCIe, H100 PCIe in lower TDP form), or memory-bandwidth-bound, the R750xd is the upgrade path. For SFF density with V100 \/ T4 GPUs and SAS SSD, the R740xd 24-Bay 2.5\" is still competitive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 16th gen R760xd2 (Sapphire \/ Emerald Rapids):\u003c\/strong\u003e The R760xd2 is the current production storage-dense 2U: DDR5-5600, PCIe Gen5, up to 64 cores per socket on Emerald, BOSS-N1 NVMe boot, PERC H965i tri-mode NVMe RAID. For workloads past 2030 or with hardware NVMe RAID requirements, R760xd2 is the right call. For 24 SAS\/SATA SSD + GPU at a fraction of the cost, the R740xd 24-Bay 2.5\" still wins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. HPE counterpart:\u003c\/strong\u003e The cross-vendor analog is the HPE ProLiant DL380 Gen10 24 SFF chassis. Same 2U Purley dual-socket platform vocabulary, comparable iLO 5 management, comparable PSU and PCIe envelope. The Dell-side advantage in 2026 is the depth of secondary-market supply, OpenManage Enterprise maturity, and the slightly more permissive GPU envelope on the R740xd. The HPE-side advantage is iLO 5 if your fleet is HPE-standardized.\u003c\/p\u003e\u003ch2\u003eHonest Limitations\u003c\/h2\u003e\u003cp\u003eLimitations specific to this chassis (in addition to the platform-level limits shared with the rest of the R740xd family):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPU and mid-bay are mutually exclusive.\u003c\/strong\u003e The mid-bay assembly consumes the GPU riser slot. Pick GPU OR mid-bay; the chassis will not host both.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVMe flex-zone limits GPU count.\u003c\/strong\u003e Flex-zone NVMe controller cards consume the riser slot that would otherwise host the third GPU. NVMe + 2 GPUs is supported; NVMe + 3 GPUs is not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware NVMe RAID is not available on 14th gen.\u003c\/strong\u003e The H740P does not RAID NVMe. For NVMe RAID, use Intel VROC, software RAID, or an SDS layer. Hardware NVMe RAID requires 16th gen R760xd2 with PERC H965i.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVDIMM-N + GPU constraints.\u003c\/strong\u003e NVDIMM-N battery on GPU shroud blocks full-length GPUs on riser 2 and blocks the 2.5\" mid-bay. This is the BOM conflict we catch most often at quote time on this chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS expander backplane (not direct-attach).\u003c\/strong\u003e The 24-bay backplane uses a SAS expander to share one PERC across 24 drives. More efficient than direct-attach but adds expander firmware as a troubleshooting layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe slot budget is tight on heavily-loaded builds.\u003c\/strong\u003e Flex-zone NVMe + GPU + 100 GbE + external HBA can exceed the 8-slot budget. We work through the slot map at quote time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAID 5 is unsafe on large-capacity LFF.\u003c\/strong\u003e Not directly applicable to this chassis (SFF SSDs are the right drive class for RAID 5 up to 6 drives), but the same arithmetic applies to any 8 TB+ spinning disk you mix in; we configure RAID 6 or RAID 60 only above 4 TB per drive on any chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe Gen3 ceiling.\u003c\/strong\u003e All slots and the backplane are PCIe 3.0. PCIe Gen4 cards run at Gen3 speeds. Upgrade path is 15th gen (Gen4) or 16th gen (Gen5).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory speed drops at 2 DPC on V2 Cascade Lake.\u003c\/strong\u003e 2933 MT\/s at 1 DPC, 2666 MT\/s at 2 DPC. Full population is still the right call for high-VM-density workloads where capacity beats marginal speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-TDP heatsink mandatory above 150W.\u003c\/strong\u003e More common on this chassis than on the LFF variants because the workloads pick higher-TDP CPUs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e Don't spec single-socket on this chassis without a deliberate reason; GPU and flex-zone NVMe deployments specifically lose half the PCIe budget.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBay configuration is order-time locked.\u003c\/strong\u003e The front bay cage is part of the physical chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWorkload Fit\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eWorkload\u003c\/th\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003evSAN OSA all-flash nodes\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003e24 SSDs in HBA330, vSAN handles redundancy. Textbook config.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeph all-flash OSD nodes\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eHBA330 + 24 SAS SSD, Ceph BlueStore.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase servers (Oracle, SQL)\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eLocal SSD tier, H740P for write cache.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVDI with vGPU\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003e1-3 GPUs, 30-50 users per host with T4 or A16.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU compute (CUDA, ML inference)\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eUp to 3 double-wide 300W. Triple-GPU configs need 2000W PSU.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-density virtualization\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003e24 SSD + 768 GB RAM, 80-150 VMs per host.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHybrid SAS + NVMe workloads\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eFlex-zoning up to 12 NVMe alongside SAS SSDs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNVMe-heavy mixed workloads\u003c\/td\u003e\n\u003ctd\u003eAcceptable\u003c\/td\u003e\n\u003ctd\u003eFlex-zoning to 12 NVMe. Beyond that, use 24-Bay 2.5\" NVMe companion.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulk capacity at low cost-per-TB\u003c\/td\u003e\n\u003ctd\u003eWrong drive class\u003c\/td\u003e\n\u003ctd\u003eUse 12-Bay 3.5\" with NL-SAS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll-NVMe (24 drives, hardware RAID)\u003c\/td\u003e\n\u003ctd\u003eWrong chassis\u003c\/td\u003e\n\u003ctd\u003eUse 24-Bay 2.5\" NVMe companion + software RAID, or step to R760xd2.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhere to Look Instead\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003eR740xd 12-Bay 3.5\"\u003c\/a\u003e:\u003c\/strong\u003e The bulk LFF capacity reference page. Choose when NL-SAS spinning disk is the right drive class for backup targets, archive, or capacity-tier SDS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-2-bay-lff-rfb-build-your-own\"\u003eR740xd 12-Bay 3.5\" + 2-Bay LFF RFB\u003c\/a\u003e:\u003c\/strong\u003e LFF with rear flex bay. Choose when 14 LFF is the right number and you can accept reduced PCIe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003eR740xd 24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e:\u003c\/strong\u003e Same front 24 SFF as this page plus 4 rear bays for 28 SFF total. Choose when you need maximum SFF density.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003eR740xd 24-Bay 2.5\" NVMe\u003c\/a\u003e:\u003c\/strong\u003e All-NVMe companion with native PCIe-attached backplane. Choose for all-NVMe workloads beyond what flex-zoning supports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740-16-bay-2-5-chassis\"\u003eR740 16-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e Compute-balanced 2U companion. Choose when 16 SFF is sufficient and you do not need mid-bay or rear-bay.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReady to Configure?\u003c\/h2\u003e\u003cp\u003eTell us your workload, target CPU class, memory capacity, drive configuration (SAS \/ SATA \/ NVMe flex-zoning mix, capacity per drive, RAID strategy), GPU requirements if any, network bandwidth, and quantity. Our account team will put together a tailored quote within 24 hours. Not sure if the 24-Bay 2.5\" is the right variant? Tell us about your workload and we will recommend the right R740xd companion, the R740 16-Bay 2.5\" if 16 SFF is sufficient, or step you up to 15th or 16th gen if the data supports it.\u003c\/p\u003e\u003cp\u003eCall \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty, runs through our \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in with full SMART validation on every drive bay and load-testing on every GPU slot if equipped, and qualifies for volume pricing at \u003cstrong\u003e5 units\u003c\/strong\u003e and above. \u003ca href=\"\/pages\/quote-cart\"\u003eRequest a Quote\u003c\/a\u003e | \u003ca href=\"\/pages\/contact\"\u003eContact our account team\u003c\/a\u003e\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":45951276056775,"sku":"BP-011932","price":882.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/files\/server-design-lab-dell-poweredge-r740xd-24-bay-25-drives-849229.png?v=1765539695"},{"product_id":"dell-poweredge-r740xd-12-bay-2-bay-lff-rfb-build-your-own","title":"Dell PowerEdge R740xd 12-Bay 3.5\" + 2-Bay LFF RFB [14th Gen]","description":"\u003cp\u003eThe R740xd 12-Bay 3.5\" + 2-Bay LFF RFB is the rear-flex-bay companion to the 12-Bay 3.5\" reference page. Twelve hot-swap 3.5\" front bays plus two additional 3.5\" hot-swap bays at the rear, for fourteen LFF total in a single 2U chassis. The Intel Purley dual-socket compute platform is identical to the 12-Bay 3.5\" reference page; what is genuinely different is the architectural tradeoff at the rear of the chassis: the rear bays consume riser slot 3, which drops effective PCIe slot count and forecloses the mid-bay expansion option in exchange for two rear-accessible hot-swap bays.\u003c\/p\u003e\u003cp\u003eThe buyer who picks this variant has usually thought through what those two extra bays are for. The three patterns we see most often are: (1) two rear bays as dedicated global hot-spares for the 12-drive front array (RAID 6 + 2 spares is a more resilient unattended configuration than RAID 6 alone), (2) two rear bays for an OS mirror with the front bays reserved for workload storage (when BOSS-S1 capacity is insufficient or the workload wants OS on hot-swap rotating media for some operational reason), or (3) two extra bays of front-array capacity for a 14-drive RAID 60 (less common because wider arrays carry rebuild-window penalties). The When 14 LFF Is the Right Choice section below covers the decision tree.\u003c\/p\u003e\u003cp\u003eTo configure a build, call \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd we ship runs through a \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in across every memory channel, every PCIe slot, and every drive bay including the rear flex bay positions; the burn-in includes full surface scan and SMART validation on every drive bay before shipment. Every unit ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty and 1-Year, 2-Year, and 3-Year Premium options at quote time. Volume pricing applies at \u003cstrong\u003e5 units\u003c\/strong\u003e and above; tell us your workload and how you plan to use the rear bays and we will put together the right BOM or steer you to the 12-Bay 3.5\" reference variant if the rear-bay justification is not strong.\u003c\/p\u003e\u003ch2\u003eWhen 14 LFF Is the Right Choice\u003c\/h2\u003e\u003cp\u003eThe + 2-Bay LFF RFB earns its place in the R740xd family on one specific pattern: 14 LFF in a single 2U chassis with rear-accessible hot-swap on the additional pair. It is the right call when the design needs in-chassis hot-spare capacity or a physically separated OS tier on rotating media. It is not the right call when the additional bays are wanted simply for raw capacity, because the standard 12-Bay 3.5\" with mid-bay expansion gives 16 LFF total without the PCIe slot penalty.\u003c\/p\u003e\u003cp\u003ePick the + 2-Bay LFF RFB when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYou specifically want in-chassis hot-spare capacity. The 12-drive front array as RAID 6 plus 2 dedicated rear hot-spares is a textbook resilient configuration for unattended backup-target deployments.\u003c\/li\u003e\n\u003cli\u003eYou need to separate OS storage from workload storage on physically distinct hot-swap bays. Less common than BOSS-S1 boot, but useful when OS capacity exceeds the BOSS M.2 form factor or operational requirements demand it.\u003c\/li\u003e\n\u003cli\u003eYou are running Ceph OSD nodes where the rear pair hosts the OS mirror and the front 12 bays host the OSDs. This is a clean physical separation for SDS deployments.\u003c\/li\u003e\n\u003cli\u003eYou can accept reduced PCIe slot count (roughly 6 effective slots instead of 8) and you are not using mid-bay expansion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePick the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\" reference variant\u003c\/a\u003e when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYou want full PCIe slot count for additional HBAs, networking adapters, or expansion cards\u003c\/li\u003e\n\u003cli\u003eYou want mid-bay expansion (4 additional LFF or SFF bays in the chassis, mid-bay and rear-bay are mutually exclusive)\u003c\/li\u003e\n\u003cli\u003eHot-spares can live as cold-spares on the shelf rather than dedicated chassis bays\u003c\/li\u003e\n\u003cli\u003e12 LFF is sufficient for the workload\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePick external SAS expansion (PERC H840 + Dell MD1400 \/ MD1420 JBOD) when you need more than 18 LFF total (the R740xd chassis ceiling with mid-bay + rear-bay), or when you want centralized RAID management across multiple chassis worth of drives.\u003c\/p\u003e\u003ch2\u003eStorage - 12x Front + 2x Rear 3.5\" LFF Bays\u003c\/h2\u003e\u003cp\u003eTwelve hot-swap 3.5\" SAS\/SATA front bays on the same direct-attach LFF backplane as the reference variant, plus two additional 3.5\" hot-swap bays at the rear. The rear bay assembly is hot-swap accessible from behind the rack and connects through dedicated SAS cabling that routes across the chassis top and consumes riser slot 3. The rear bays present to the OS as additional drive slots on the same PERC or HBA, not as a separate controller; they appear in the controller's drive enumeration alongside the front bays.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCabling architecture:\u003c\/strong\u003e The rear-bay SAS cables route across the chassis top and connect to the main backplane SAS expansion. This routing consumes physical space that would otherwise be available for mid-bay cabling, which is why mid-bay and rear-bay are mutually exclusive on this chassis. The architectural decision is locked at order time; field conversion from one to the other requires chassis disassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRear bay service access:\u003c\/strong\u003e Hot-swap drive replacement on the rear bays requires rear-rack access with enough clearance to fully extract the drive caddy. If the rack rear has constrained clearance (deep cable bundles, blanking panels right behind the chassis, or short rack depth), accessing the rear bays for drive swap requires temporarily relocating cable bundles. Cable management arm installation is strongly recommended on this variant to keep cabling out of the rear-bay service path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDrive options we quote:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNL-SAS 7.2K:\u003c\/strong\u003e 12 TB, 14 TB, 16 TB, 18 TB, 20 TB. The volume capacity sweet spot on the refurbished market in 2026 is 16 TB. RAID 6 mandatory above four drives. A 16 TB NL-SAS rebuild on a degraded RAID 6 takes 24 to 36 hours under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnterprise SATA HDD:\u003c\/strong\u003e 8 TB, 12 TB. Acceptable for backup targets and cold archive. NL-SAS is the correct spec for 24\/7 production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5\" SAS SSD:\u003c\/strong\u003e Rare on the secondary market. If you need LFF flash, 2.5\" SSDs in a 3.5\"-to-2.5\" caddy adapter is the volume play, though the 24-Bay 2.5\" companion variants are usually cleaner for flash-heavy deployments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRAID guidance:\u003c\/strong\u003e RAID 6 is the floor on any NL-SAS array above four drives. RAID 5 is unsafe on large-capacity LFF; we configure RAID 6 or RAID 60 only on spinning disk above 4 TB per drive. The 12-bay front array as RAID 6 with the 2 rear bays as global hot-spares is the textbook configuration on this variant; the controller can rebuild onto a hot-spare automatically and shorten the at-risk window after a drive failure. If you choose to run 14 drives as a single wide RAID 60 instead, plan for the longer rebuild window that scales with array width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpin-up current at scale on multi-unit LFF deployments:\u003c\/strong\u003e Fourteen LFF spindles spinning up simultaneously can exceed steady-state draw by 30 to 40 percent for 30 to 60 seconds on a cold boot. The PSU floor on this variant is 1100W Platinum, not 750W, because of the two additional drives. See the Power and Cooling section for the full sizing table. Multi-chassis deployments on the same PDU should coordinate boot sequencing to avoid simultaneous cold-boot surge on the upstream breaker.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVMe note:\u003c\/strong\u003e The + RFB variant inherits the LFF chassis's no-front-NVMe limitation. The rear bays are SAS\/SATA only. For NVMe, use the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003eR740xd 24-Bay 2.5\" NVMe\u003c\/a\u003e companion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBoot:\u003c\/strong\u003e BOSS-S1 (Boot Optimized Storage Solution, dual mirrored M.2 SATA SSDs on a dedicated PCIe card, hardware RAID 1, cold-swap). Standard 14th gen boot device. We add it to every R740xd BOM by default. If the deployment is using the rear bays for OS storage instead of BOSS, we will say so on the BOM explicitly and the customer makes the call; otherwise reserve the rear bays for hot-spares or additional capacity.\u003c\/p\u003e\u003ch2\u003eStorage Controllers\u003c\/h2\u003e\u003cp\u003eThe full 14th gen PERC family is available on this chassis via the Mini-PERC slot, identical to the 12-Bay 3.5\" reference variant. Controller selection is workload-driven; the rear-bay assembly does not change the controller story.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H740P (8 GB NV cache, battery-backed):\u003c\/strong\u003e Our production storage default. The 8 GB non-volatile cache and battery backing survive a power event without UPS dependency. For backup-target, file-server, and Ceph OSD workloads on this chassis, the H740P is the right call. The hot-spare assignment for the 2 rear bays is configured through H740P's controller management at deployment time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730P (2 GB cache, battery-backed):\u003c\/strong\u003e General-purpose choice for mixed or read-heavy workloads where 8 GB of cache is over-spec. Lower price point. For backup-target workloads where most writes are sequential, H730P is often acceptable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730 (1 GB cache, battery-backed):\u003c\/strong\u003e 13th-gen carryover via Mini-PERC slot compatibility. Viable on the R740xd but generally a downgrade vs the H730P or H740P on Cascade Lake workloads. We see this controller frequently on the secondary market because 13th-gen-to-14th-gen field upgrades carried it forward rather than replacing it; refurbished units sometimes ship with the H730 already installed. Quote when budget is the hard constraint and write performance is not load-bearing; quote H730P or H740P otherwise. Not a primary recommendation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H330 (no cache):\u003c\/strong\u003e Entry-tier hardware RAID. Not appropriate for production storage-dense deployments on this chassis. Listed for completeness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHBA330 (pass-through HBA):\u003c\/strong\u003e Required for software-defined storage stacks (vSAN OSA, Storage Spaces Direct, Ceph, ZFS). For Ceph OSD deployments using the rear pair as OS mirror, the HBA330 is the data-path controller for the front 12 bays and the OS mirror typically runs through software RAID or a separate auxiliary mechanism.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H840 (external):\u003c\/strong\u003e For external SAS enclosure connectivity when scale-out beyond 14 internal bays is needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eS140 (software RAID via chipset):\u003c\/strong\u003e Dev\/test only. Not a production recommendation.\u003c\/p\u003e\u003ch2\u003eProcessors\u003c\/h2\u003e\u003cp\u003eThe R740xd + 2-Bay LFF RFB supports 1st Generation Intel Xeon Scalable (Skylake-SP, 2017) and 2nd Generation Intel Xeon Scalable (Cascade Lake-SP, 2019) in the same LGA 3647 socket. Drop-in compatible. Same V1 \/ V2 socket compatibility story as the rest of the 14th gen family.\u003c\/p\u003e\u003cp\u003eCPU selection on this chassis follows the same logic as the 12-Bay 3.5\" reference variant: storage-dense workloads are typically not CPU-bound, so do not over-spec. Our recommendations:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6230 (20 cores, 2.1 GHz, 125W TDP):\u003c\/strong\u003e The sweet spot for storage-dense workloads. Forty cores in a dual-socket build covers backup targets, file servers, and Ceph OSD nodes with headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver 4214 (12 cores, 2.2 GHz, 85W TDP):\u003c\/strong\u003e For backup-target deployments where compute is genuinely secondary. Twenty-four cores total is sufficient for Veeam proxy or Commvault MediaAgent duty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248 (20 cores, 2.5 GHz, 150W TDP):\u003c\/strong\u003e When the chassis doubles as application tier. 150W TDP boundary discussed below.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHeatsink mismatch above 150W is the trap.\u003c\/strong\u003e Any processor above 150W TDP requires the high-performance heatsink. The standard heatsink will thermally throttle under sustained load. The 14-drive thermal load on this chassis is slightly higher than the 12-drive reference variant; confirm heatsink at quote time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e A single-socket build leaves the second CPU's 12 DIMM slots unreachable, half the PCIe lanes unavailable, and the second NDC slot inactive. On this chassis the PCIe budget is already reduced by the rear-bay assembly; single-socket compounds the problem. Almost never the right call.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStorage-dense thermal note:\u003c\/strong\u003e Fourteen-drive configurations run hotter than equivalent twelve-drive configurations because of the additional rear-bay drives. The thermal envelope is unchanged but the headroom is smaller. For Gold 6248 or above, confirm ambient temperature and rack airflow at quote time.\u003c\/p\u003e\u003ch2\u003eMemory\u003c\/h2\u003e\u003cp\u003e24 DDR4 DIMM slots: 12 per CPU, 6 channels per CPU, 2 DIMMs per channel. Supports RDIMM up to 128 GB per DIMM, LRDIMM up to 256 GB per DIMM. Maximum capacity 3 TB with 128 GB RDIMMs at 2 DPC, 6 TB with 256 GB LRDIMMs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMemory speed by population and generation:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkylake (V1):\u003c\/strong\u003e DDR4-2666 at 1 DPC, DDR4-2666 at 2 DPC (no penalty for full population)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) Gold 6200 \/ 5222 SKUs:\u003c\/strong\u003e DDR4-2933 at 1 DPC, drops to DDR4-2666 at 2 DPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) other SKUs:\u003c\/strong\u003e DDR4-2666 at any population\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRDIMM vs LRDIMM:\u003c\/strong\u003e For most 14-bay storage-dense workloads, RDIMM at 32 GB or 64 GB is the right choice. LRDIMM only becomes the right call when you specifically need 128 GB or higher per DIMM, which is rare on backup-target or capacity-tier SDS workloads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVDIMM-N:\u003c\/strong\u003e Up to 12 NVDIMM-N modules (16 GB each, 192 GB total). NVDIMM-N is rarely combined with the rear-bay configuration in practice; the GPU shroud constraint that affects the 24-Bay 2.5\" is less relevant here because this chassis does not support GPU regardless. Confirm at quote time if NVDIMM-N is in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVMe bifurcation BIOS setting:\u003c\/strong\u003e Not directly relevant on this chassis (no front NVMe, no flex-zone NVMe). Mid-bay NVMe is also not possible on this variant because mid-bay and rear-bay are mutually exclusive. Listed for completeness across the R740xd family.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWorkload sizing guidance:\u003c\/strong\u003e Match memory to the workload. Backup target: 96 to 192 GB is honest. File server: 64 to 128 GB. Ceph OSD with OS-on-rear-bay: 192 to 384 GB. Do not spec to chassis ceiling unless the workload justifies it.\u003c\/p\u003e\u003ch2\u003eNetworking and PCIe Expansion\u003c\/h2\u003e\u003cp\u003eThe R740xd uses Dell's Network Daughter Card (NDC) mezzanine standard. The NDC slot is dedicated and does not consume a PCIe slot, which matters more on this chassis than on the reference variant because PCIe slot budget is already reduced by the rear-bay assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNDC port options:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 1 GbE:\u003c\/strong\u003e Base option. Acceptable for management-network-only. Not recommended for storage-dense workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 10 GbE + 2x 1 GbE:\u003c\/strong\u003e Pragmatic mixed option for general workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 10 GbE:\u003c\/strong\u003e Baseline for backup targets. Four ports give bonding flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 25 GbE (Mellanox ConnectX-4 Lx):\u003c\/strong\u003e For SDS deployments specifically. Ceph OSD nodes with OS-on-rear-bay are a common 25 GbE deployment on this chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e100 GbE:\u003c\/strong\u003e Not available as NDC. If 100 GbE is the requirement, it goes in a PCIe slot, and on this chassis the slot budget is already tighter. ConnectX-5 dual-port is the right card for this platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots in the base chassis, dropping to roughly 6 effective slots because riser 3 is consumed by rear-bay cabling. Riser configurations 1A \/ 1B \/ 2A \/ 2B trade slot count and form factor; riser 3 is occupied by the rear-bay assembly on this variant by definition. Confirm your PCIe card list at quote time before locking the chassis configuration.\u003c\/p\u003e\u003ch2\u003eGPU Support\u003c\/h2\u003e\u003cp\u003eThe honest answer on this variant: \u003cstrong\u003eno meaningful GPU support.\u003c\/strong\u003e Rear-bay cabling consumes riser 3 and the reduced effective PCIe slot count combined with the bays-vs-GPU architectural conflict means GPUs are not a practical configuration. This is the same outcome as the 12-Bay 3.5\" reference variant (the LFF chassis is not a GPU chassis), reinforced on this variant by the rear-bay assembly's consumption of the riser that would otherwise host the third GPU.\u003c\/p\u003e\u003cp\u003eIf you need GPU on an R740xd-class chassis, the GPU-capable variant is the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003e24-Bay 2.5\" SAS\/SATA companion\u003c\/a\u003e. If you need GPU plus bulk LFF storage in the same chassis, the answer is the T640 tower (4.5U, more permissive GPU envelope) or a dedicated GPU server with external SAS storage via PERC H840.\u003c\/p\u003e\u003ch2\u003eManagement - iDRAC9 Generation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eiDRAC9 Enterprise is the production spec.\u003c\/strong\u003e Full remote KVM with HTML5 console, virtual media for ISO mounting, group management via OpenManage Enterprise, Lifecycle Controller for firmware updates without OS involvement, Quick Sync 2 wireless management. Express tier is insufficient for unattended deployment; we spec Enterprise on every R740xd BOM by default. iDRAC9 also exposes the rear-bay drive health metrics in the same enumeration as the front bays, which simplifies fleet-wide health monitoring through OpenManage Enterprise.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSilicon Root of Trust\u003c\/strong\u003e via the Intel platform. TPM 2.0 module supported. Cryptographically signed firmware verification at boot. Meets HIPAA, PCI DSS, CMMC, and federal civilian compliance requirements.\u003c\/p\u003e\u003cp\u003eSecure Boot, BIOS recovery, signed firmware updates, and System Erase (full media wipe including drives and SSDs) clear the bar for FedRAMP, DoD, and financial services environments without third-party add-ons. For volume deployments, OpenManage Enterprise handles fleet-wide firmware management, configuration templates, and compliance reporting across all 14 drives on this chassis identically to other R740xd variants.\u003c\/p\u003e\u003ch2\u003ePower and Cooling\u003c\/h2\u003e\u003cp\u003eHot-swap redundant Dell Flex Slot PSUs: 495W, 750W (Platinum and Titanium), 1100W Platinum, 1600W Platinum, 2000W, 2400W. The 14-drive load draws marginally more than the 12-drive reference variant; PSU sizing accounts for the full populated load including rear bays.\u003c\/p\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePSU Recommendation\u003c\/th\u003e\n\u003cth\u003eEst. Peak Draw\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight: Silver 4214, 96 GB RAM, 12x 8 TB front + 2 rear hot-spare\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~380W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced: Gold 6230, 384 GB RAM, 12x 16 TB front + 2 rear hot-spare\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~620W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy: Gold 6248, 768 GB RAM, 14x 20 TB single RAID 60\u003c\/td\u003e\n\u003ctd\u003e2x 1600W Platinum\u003c\/td\u003e\n\u003ctd\u003e~860W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpin-up current at scale on multi-unit LFF deployments is the under-spec'd PSU trap.\u003c\/strong\u003e Fourteen LFF spindles spinning up simultaneously can exceed steady-state draw by 30 to 40 percent for 30 to 60 seconds on a cold boot. The 750W Platinum option is undersized for a 14-drive cold start; 1100W Platinum is our floor recommendation for + RFB configurations. At rack-level, multiple R740xd chassis booting simultaneously after a UPS event or planned maintenance window is one of the most common causes of breaker trips in storage-dense deployments; coordinate boot sequencing if you have more than three or four chassis on the same PDU.\u003c\/p\u003e\u003cp\u003eCooling is the standard 14th gen 2U fan kit, hot-swap fans, N+1 redundancy. Ambient temperature ceiling is 35°C with standard fans. The two rear-bay drives add modest thermal load behind the chassis; ensure rear-rack airflow is not impeded by cable bundles.\u003c\/p\u003e\u003ch2\u003ePhysical Specs \u0026amp; Platform Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 2U rack. Approximate dimensions 86.8 mm x 482.0 mm x 715.5 mm (H x W x D) with bezel. Identical chassis envelope to the 12-Bay 3.5\" reference page. Rear bays are flush with the rear panel; no additional depth required. Depth fits standard 1000 mm cabinet rails with cable management arm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots on the chassis, dropping to roughly 6 effective slots because riser 3 is consumed by rear-bay cabling. Riser configurations 1A \/ 1B \/ 2A \/ 2B available for the remaining risers; riser 3 is occupied by the rear-bay assembly by definition on this variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParts availability:\u003c\/strong\u003e Excellent through 2030 minimum. The + RFB variant is lower volume than the reference 12-Bay 3.5\" but the rear-bay assembly and the underlying chassis parts are abundant on the secondary market. Dell ProSupport channels remain active in 2026; third-party maintenance for 14th gen Dell is mature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories we recommend:\u003c\/strong\u003e Dell ReadyRails II sliding rail kit for the R740xd (confirm part number at quote time against your chassis revision and cabinet depth), cable management arm (strongly recommended on this variant for rear-bay service access), Dell LCD bezel for the R740xd 2U chassis (confirm part number at quote time against your chassis revision). The CMA is more important on the + RFB variant than on the reference 12-Bay because rear-bay drive swap requires unobstructed rear-rack access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform notes:\u003c\/strong\u003e CPU hot-plug is not supported. NVMe bifurcation BIOS setting applies to PCIe-attached NVMe carriers in expansion slots, not to the front or rear bays which are SAS\/SATA. Mid-bay and rear-bay are mutually exclusive; pick one architectural direction at order time. Riser configuration is locked at order time. Bay configuration is welded into the chassis; field conversion to a different bay layout requires chassis disassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOur Assessment\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere it excels:\u003c\/strong\u003e Backup-target configurations with in-chassis hot-spare capacity. Twelve-drive RAID 6 plus two dedicated rear hot-spares is a textbook resilient configuration for unattended deployments where automatic rebuild onto a spare matters more than the 24-to-36-hour rebuild window on degraded RAID 6. Ceph OSD nodes where the rear bay pair hosts the OS mirror and the front 12 bays host the OSDs. File servers that benefit from physical separation between OS storage and workload storage. Any storage-dense deployment that genuinely benefits from 14 LFF in a single chassis and does not need full PCIe slot capacity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere to look instead:\u003c\/strong\u003e If you want more bays for additional capacity rather than for hot-spares or OS separation, the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\" reference variant\u003c\/a\u003e with mid-bay expansion gives you 16 LFF total without consuming PCIe slot 3. If hot-spares can live as cold-spares on the shelf rather than dedicated chassis bays, the reference variant is cleaner. If random-IOPS-sensitive workloads or SSDs are the right drive class, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003e24-Bay 2.5\" companion\u003c\/a\u003e is the SFF density answer. If your design needs more than 18 LFF total across the family, external SAS expansion via PERC H840 + MD1400 \/ MD1420 JBOD is the scale-out path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom line:\u003c\/strong\u003e The + 2-Bay LFF RFB is a specialist variant. The typical buyer is an IT director or storage architect specifically designing around in-chassis hot-spares or physically-separated OS storage for an unattended storage-dense deployment, with a 4 to 6 year deployment horizon. Half our quote conversations on this variant end with us steering the buyer to the reference 12-Bay 3.5\" because the additional bays are not specifically wanted for hot-spare or OS-separation reasons; the other half are the right buyer for this variant, where in-chassis rear-accessible hot-swap on the spare drives genuinely matters. For that buyer, this is the configuration.\u003c\/p\u003e\u003ch2\u003eWhere the R740xd Fits in 2026\u003c\/h2\u003e\u003cp\u003eThe R740xd is 14th gen Dell PowerEdge (Skylake-SP 2017, Cascade Lake 2019). Mature, well-supported on the secondary market, our highest-velocity storage-dense 14th gen SKU family. Dell ProSupport on the R740xd is approaching end-of-extended-support; third-party maintenance is the standard production support path in 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 13th gen R730xd:\u003c\/strong\u003e Skip the R730xd unless you have a hard cost ceiling. The R740xd brings Skylake or Cascade Lake (vs Broadwell), DDR4 (vs DDR3), iDRAC9 with Silicon Root of Trust, and a 4 to 6 year longer parts availability runway.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 15th gen R750xd (Ice Lake, 2021):\u003c\/strong\u003e R750xd adds PCIe Gen4 (doubled bandwidth), DDR4-3200, 32 DIMM slots, and 3rd Gen Xeon Scalable. The 15th gen rear-bay variants exist with similar architectural tradeoffs. For workloads bottlenecked on memory bandwidth or PCIe Gen4 I\/O, R750xd is the upgrade path. For bulk LFF at lowest cost, the R740xd is still competitive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 16th gen R760xd2:\u003c\/strong\u003e R760xd2 is the current production storage-dense 2U with DDR5-5600, PCIe Gen5, up to 64 cores per socket on Emerald, BOSS-N1 NVMe boot, PERC H965i tri-mode. For workloads in production past 2030 or needing current-gen Dell support contracts, R760xd2 is the right step up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. HPE counterpart:\u003c\/strong\u003e The cross-vendor analog is the HPE ProLiant DL380 Gen10 12 LFF chassis with rear-bay options. Same Purley dual-socket platform vocabulary, comparable iLO 5 management, comparable PSU envelope. The HPE LFF chassis tops out at 12 front bays with limited rear-bay options; the Dell-side advantage in 2026 is supply depth on the LFF + rear-bay configuration and the maturity of OpenManage tooling for fleet management.\u003c\/p\u003e\u003ch2\u003eHonest Limitations\u003c\/h2\u003e\u003cp\u003eLimitations specific to this chassis (in addition to the platform-level limits shared with the rest of the R740xd family):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe slot count is reduced.\u003c\/strong\u003e Riser 3 is consumed by rear-bay cabling. Effective PCIe slot count drops from 8 (reference variant) to roughly 6 slots. Confirm your PCIe card list at quote time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMid-bay and rear-bay are mutually exclusive.\u003c\/strong\u003e If you need 4 additional LFF or SFF bays, the mid-bay option on the reference 12-Bay 3.5\" is the path. If you need 2 rear-accessible hot-swap bays specifically, this variant is the path. Pick one architectural direction at order time; field conversion requires chassis disassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear-bay service access requires rack rear clearance.\u003c\/strong\u003e Hot-swap drive replacement on the rear pair requires unobstructed rear-rack access. CMA installation is strongly recommended to keep cabling out of the service path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo meaningful GPU support.\u003c\/strong\u003e Same as the reference LFF variant; the LFF chassis is not a GPU chassis, and the rear-bay assembly compounds the PCIe constraint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAID 5 is unsafe on large-capacity LFF.\u003c\/strong\u003e 16 TB and 20 TB drive rebuilds on degraded RAID 6 take 24 to 36 hours under load. We configure RAID 6 or RAID 60 only above 4 TB per drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe Gen3 ceiling.\u003c\/strong\u003e All slots and the backplane are PCIe 3.0. Upgrade path is 15th gen (Gen4) or 16th gen (Gen5).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory speed drops at 2 DPC on V2 Cascade Lake.\u003c\/strong\u003e 2933 MT\/s at 1 DPC, 2666 MT\/s at 2 DPC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-TDP heatsink mandatory above 150W.\u003c\/strong\u003e The 14-drive thermal load is slightly higher than the reference 12-drive variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e Particularly costly on this variant because the PCIe budget is already reduced.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBay configuration is order-time locked.\u003c\/strong\u003e The rear-bay assembly is part of the physical chassis specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpin-up current at scale.\u003c\/strong\u003e Fourteen-drive cold-boot surge exceeds twelve-drive; PSU floor is 1100W Platinum.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWorkload Fit\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eWorkload\u003c\/th\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup target with in-chassis hot-spares\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003e12-drive RAID 6 + 2 rear bays as global hot-spares.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFile server with OS\/data separation\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eRear bays for OS mirror; front bays for data RAID.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeph OSD with rear-bay OS\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eFront 12 = OSDs; rear 2 = OS pair on software RAID.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWide RAID 60 across all 14 drives\u003c\/td\u003e\n\u003ctd\u003eAcceptable\u003c\/td\u003e\n\u003ctd\u003eValid but rebuild-window penalties scale with array width.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity-tier (no hot-spare need)\u003c\/td\u003e\n\u003ctd\u003eMarginal\u003c\/td\u003e\n\u003ctd\u003eReference 12-Bay + mid-bay is usually better.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeployments needing 8 PCIe slots\u003c\/td\u003e\n\u003ctd\u003ePCIe constrained\u003c\/td\u003e\n\u003ctd\u003eRear-bay cabling consumes riser 3.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU workloads\u003c\/td\u003e\n\u003ctd\u003eNot supported on LFF\u003c\/td\u003e\n\u003ctd\u003eSame as reference 12-Bay; use 24-Bay 2.5\" or T640.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront NVMe\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003ctd\u003eR740xd 24-Bay 2.5\" NVMe is the answer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhere to Look Instead\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003eR740xd 12-Bay 3.5\"\u003c\/a\u003e:\u003c\/strong\u003e The reference variant. Same front bays, no rear bay, full PCIe slot count, supports mid-bay expansion to 16 LFF. The natural alternative if you do not specifically need in-chassis rear-bay hot-swap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003eR740xd 24-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e SFF density companion if performance or GPU support matters more than bulk LFF capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own\"\u003eR740xd 24-Bay 2.5\" + 4-Bay RFB\u003c\/a\u003e:\u003c\/strong\u003e The SFF equivalent of this variant, with the same architectural tradeoff (more bays, fewer PCIe slots) but in SFF form. 28 SFF total.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003eR740xd 24-Bay 2.5\" NVMe\u003c\/a\u003e:\u003c\/strong\u003e All-NVMe companion. Different controller architecture; software RAID only on data path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740-16-bay-2-5-chassis\"\u003eR740 16-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e Compute-balanced 2U companion. Choose when storage density is not the constraint and 8 to 16 front bays is sufficient.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReady to Configure?\u003c\/h2\u003e\u003cp\u003eTell us your workload, target CPU class, memory capacity, drive configuration (capacity per drive, RAID level, how you intend to use the 2 rear bays: hot-spares, OS storage, or additional capacity), network bandwidth requirements, and quantity. Our account team will put together a tailored quote within 24 hours. Not sure if the rear flex bay is worth the PCIe slot tradeoff? Tell us about your workload and we will recommend the reference 12-Bay 3.5\" with mid-bay or shelf-spare strategy if the rear-bay justification is not strong. That conversation is part of the quote process.\u003c\/p\u003e\u003cp\u003eCall \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty, runs through our \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in with full surface-scan and SMART validation on every drive bay including the rear pair, and qualifies for volume pricing at \u003cstrong\u003e5 units\u003c\/strong\u003e and above. \u003ca href=\"\/pages\/quote-cart\"\u003eRequest a Quote\u003c\/a\u003e | \u003ca href=\"\/pages\/contact\"\u003eContact our account team\u003c\/a\u003e\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":45951312789703,"sku":"BP-013762","price":1522.96,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/files\/dell-poweredge-r740xd-12-bay-with-2-bay-35-rfb-637802.png?v=1765539751"},{"product_id":"dell-poweredge-r740xd-24-bay-4-bay-rfb-build-your-own","title":"Dell PowerEdge R740xd 24-Bay 2.5\" + 4-Bay RFB [14th Gen]","description":"\u003cp\u003eThe R740xd 24-Bay 2.5\" + 4-Bay RFB is the maximum-SFF-density companion in the R740xd family. Twenty-four hot-swap 2.5\" front bays on the SAS expander backplane plus four additional 2.5\" hot-swap bays at the rear, for twenty-eight SFF total in a single 2U chassis. The Intel Purley dual-socket compute platform is identical to the 12-Bay 3.5\" reference page; what is genuinely different is the front + rear SFF backplane combination and the architectural tradeoff: the rear bay assembly consumes riser slot 3, which reduces effective PCIe slot count and caps the GPU envelope at 2 double-wide cards (down from 3 on the standard 24-Bay 2.5\"). In exchange you get the highest SFF density of any R740xd configuration and a clean physical separation between front and rear drive groups for cache\/capacity tiering.\u003c\/p\u003e\u003cp\u003eThe buyer who picks this variant has usually thought through what those four rear bays are for. The patterns we see most often are: (1) cache + capacity tier separation in HCI, with the 4 rear bays as a cache tier (NVMe or write-intensive SAS SSD) and the 24 front bays as capacity tier - this is the textbook vSAN OSA configuration with 4 disk groups; (2) hot-spares plus OS storage combined, with 2 rear bays as global hot-spares and 2 rear bays as OS mirror physically separated from workload storage; (3) maximum-density VDI or database consolidation where every SFF spindle counts. The When 28 SFF Is the Right Choice section below covers the decision tree.\u003c\/p\u003e\u003cp\u003eTo configure a build, call \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd we ship runs through a \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in across every memory channel, every PCIe slot, and every drive bay including the rear flex bay positions and every GPU slot under load for GPU-equipped builds. Every unit ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty and 1-Year, 2-Year, and 3-Year Premium options at quote time. Volume pricing applies at \u003cstrong\u003e5 units\u003c\/strong\u003e and above; tell us your workload, how you plan to use the rear bays, and your quantity, and we will put together the right BOM or steer you to the standard 24-Bay 2.5\" if the rear-bay justification is not strong.\u003c\/p\u003e\u003ch2\u003eWhen 28 SFF Is the Right Choice\u003c\/h2\u003e\u003cp\u003eThe + 4-Bay RFB earns its place in the R740xd family on one specific architectural pattern: 28 SFF in a single 2U chassis with physical separation between front and rear drive groups. It is the right call when the design uses the rear bays for cache tier, hot-spare + OS, or genuine maximum density. It is not the right call when 24 SFF would have been sufficient or when the PCIe and GPU constraints from the rear-bay assembly outweigh the four additional bays.\u003c\/p\u003e\u003cp\u003ePick the + 4-Bay RFB when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYou are building vSAN OSA HCI nodes with explicit cache + capacity tier separation. The 4 rear bays as NVMe or write-intensive SAS SSD cache + 24 front bays as SATA SSD or 10K SAS HDD capacity is the textbook vSAN OSA configuration with 4 disk groups (1 cache + 6 capacity per group).\u003c\/li\u003e\n\u003cli\u003eYou are building Ceph hyperconverged deployments with tiered OSDs, where the rear pair hosts the journal or WAL+DB tier and the front 24 bays host the BlueStore OSDs.\u003c\/li\u003e\n\u003cli\u003eYou are running very-high-density VDI hosts at 60 to 100 user sessions with vGPU, where the 28 SSDs materially improve user-storage IOPS.\u003c\/li\u003e\n\u003cli\u003eYou are consolidating large SQL Server deployments where every spindle counts, with separate placement of log, data, and tempdb across the front and rear groups.\u003c\/li\u003e\n\u003cli\u003eYou can accept the GPU envelope cap at 2 double-wide cards (or you do not need GPU at all).\u003c\/li\u003e\n\u003cli\u003eYou are not using mid-bay expansion (mid-bay and rear-bay are mutually exclusive on R740xd).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePick the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003estandard 24-Bay 2.5\" companion\u003c\/a\u003e when:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e24 front bays is sufficient AND you want full PCIe slot count for additional HBAs, networking adapters, or 100 GbE\u003c\/li\u003e\n\u003cli\u003eYou need 3 double-wide GPUs (the rear-bay assembly on this variant consumes the third GPU riser)\u003c\/li\u003e\n\u003cli\u003eYou want mid-bay expansion to 28 SFF instead (different PCIe and GPU tradeoffs, but same drive count)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePick the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe companion\u003c\/a\u003e when you need 24 NVMe drives with no SAS\/SATA mix; this chassis caps NVMe at 12 in flex-zoning on the front bays.\u003c\/p\u003e\u003cp\u003ePick scale-out (two standard 24-Bay 2.5\" hosts in a small SDS cluster) when better redundancy than single-chassis 28 SFF matters more than chassis count, which is the right call for production HCI clusters above a certain size.\u003c\/p\u003e\u003ch2\u003eStorage - 24x Front + 4x Rear SFF Bays\u003c\/h2\u003e\u003cp\u003eTwenty-four hot-swap 2.5\" SAS\/SATA front bays on the same SAS expander backplane as the standard 24-Bay 2.5\", with the same flex-zoning support for up to 12 NVMe drives in the front group. Plus four additional 2.5\" hot-swap bays at the rear, connected through dedicated SAS cabling that routes across the chassis top and consumes riser slot 3. The rear bays present to the OS through the same PERC or HBA as the front bays, giving you a unified 28-drive enumeration with the option to address front and rear groups separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCache + capacity tier configuration - the canonical use case on this variant:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear 4 bays:\u003c\/strong\u003e 4x NVMe or SAS SSD Mixed-Use as cache tier (vSAN OSA cache disk for each of 4 disk groups)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront 24 bays:\u003c\/strong\u003e 24x SATA SSD or 10K SAS HDD as capacity tier (6 capacity drives per disk group, 4 groups total)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController:\u003c\/strong\u003e HBA330 pass-through for both front and rear backplanes (vSAN OSA and Ceph both want pass-through)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis is the textbook 4-disk-group vSAN OSA node and the configuration we ship most often on this variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFlex-zoning NVMe on the front backplane:\u003c\/strong\u003e Same as on the standard 24-Bay 2.5\". Up to 12 NVMe drives in flex-zoning, with the common configurations being 16 SAS\/SATA + 8 NVMe or 12 SAS\/SATA + 12 NVMe. The 4 rear bays can also be configured as NVMe in some BOM revisions, but not all rear-bay assemblies support NVMe; confirm at quote time if rear NVMe is in your spec. For 24-drive all-NVMe deployments, the dedicated 24-Bay 2.5\" NVMe companion is the right page.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCabling architecture:\u003c\/strong\u003e The rear-bay SAS cables route across the chassis top and connect to the main backplane SAS expansion. This routing consumes physical space that would otherwise be available for mid-bay cabling, which is why mid-bay and rear-bay are mutually exclusive on R740xd. The architectural decision is locked at order time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRear-bay service access:\u003c\/strong\u003e Hot-swap drive replacement on the 4 rear bays requires unobstructed rear-rack access with enough clearance to extract drive caddies. If the rack rear has constrained clearance, drive swap requires temporary cable bundle relocation. Cable management arm installation is strongly recommended on this variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDrive options:\u003c\/strong\u003e Identical to the standard 24-Bay 2.5\" companion. SAS SSD Read-Intensive (1.92, 3.84, 7.68 TB), SAS SSD Mixed-Use (1.92, 3.84 TB), SATA SSD Mixed-Use (1.92, 3.84 TB), 10K SAS HDD (1.2, 2.4 TB), U.2 NVMe (1.92, 3.84, 7.68 TB) for flex-zoning. See the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003e24-Bay 2.5\"\u003c\/a\u003e companion for the full drive-tier discussion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRAID guidance for 28-drive arrays:\u003c\/strong\u003e SDS deployments are the cleaner answer at this drive count; HBA330 pass-through, let vSAN or Ceph handle redundancy. If traditional RAID is the requirement, 28-drive arrays need careful planning. A single 28-drive RAID 6 has impractical rebuild windows and excessive parity overhead. RAID 60 (multiple smaller RAID 6 spans) is the right pattern: for example, two 14-drive RAID 6 spans striped as RAID 60, or four 7-drive RAID 5 spans striped as RAID 50 if the drive class is SSD where RAID 5 is acceptable up to 6 drives. We work through the array layout at quote time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRAID 5 is acceptable for SSD arrays up to 6 drives\u003c\/strong\u003e because of the short rebuild window and lower URE rate on flash. For arrays above 6 drives, RAID 6 is the floor. RAID 10 is the right call for write-heavy workloads where the parity-write penalty is unacceptable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBoot:\u003c\/strong\u003e BOSS-S1 (Boot Optimized Storage Solution, dual mirrored M.2 SATA SSDs on a dedicated PCIe card, hardware RAID 1, cold-swap). Standard 14th gen boot device. We add it to every R740xd BOM by default. If the deployment uses 2 of the 4 rear bays for an OS mirror instead of BOSS, we will say so on the BOM explicitly and the customer makes the call.\u003c\/p\u003e\u003ch2\u003eStorage Controllers\u003c\/h2\u003e\u003cp\u003eThe full 14th gen PERC family is available on this chassis via the Mini-PERC slot. Controller selection follows the same logic as the standard 24-Bay 2.5\" companion; the rear-bay assembly does not change the controller story significantly, but the 28-drive count does push the HBA330 toward being the more common choice (SDS deployments dominate this variant).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H740P (8 GB NV cache, battery-backed):\u003c\/strong\u003e Production storage default for traditional RAID workloads spanning front and rear bays. The H740P RAIDs across both backplanes as a single controller. For database servers or mixed I\/O workloads where hardware RAID across all 28 SAS\/SATA drives is the right model, H740P is the call. Note: H740P does not RAID NVMe; flex-zone NVMe drives are on software RAID or pass-through regardless of controller choice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730P (2 GB cache, battery-backed):\u003c\/strong\u003e General-purpose hardware RAID option below H740P. Lower price point. Acceptable for read-heavy or mixed workloads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H730 (1 GB cache, battery-backed):\u003c\/strong\u003e 13th-gen carryover via Mini-PERC slot compatibility. Viable on the R740xd but generally a downgrade vs the H730P or H740P on Cascade Lake workloads. We see this controller frequently on the secondary market because 13th-gen-to-14th-gen field upgrades carried it forward rather than replacing it; refurbished units sometimes ship with the H730 already installed. Quote when budget is the hard constraint and write performance is not load-bearing; quote H730P or H740P otherwise. Not a primary recommendation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H330 (no cache):\u003c\/strong\u003e Entry-tier hardware RAID. Not appropriate for production 28-drive deployments on this chassis. Listed for completeness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHBA330 (pass-through HBA):\u003c\/strong\u003e The most common choice on this variant because the canonical use case (vSAN OSA HCI with cache + capacity tiers) wants pass-through. Required for vSAN OSA, Storage Spaces Direct, Ceph, ZFS. The HBA presents all 28 drives directly to the OS or hypervisor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePERC H840 (external):\u003c\/strong\u003e For external SAS enclosure connectivity when scale-out beyond 28 internal bays is needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eS140 (software RAID via chipset):\u003c\/strong\u003e Dev\/test only. Not a production recommendation.\u003c\/p\u003e\u003ch2\u003eProcessors\u003c\/h2\u003e\u003cp\u003eThe R740xd + 4-Bay RFB supports 1st Generation Intel Xeon Scalable (Skylake-SP, 2017) and 2nd Generation Intel Xeon Scalable (Cascade Lake-SP, 2019) in the same LGA 3647 socket. Drop-in compatible. Same V1 \/ V2 socket compatibility story as the rest of the 14th gen family.\u003c\/p\u003e\u003cp\u003eCPU selection on this chassis follows the standard 24-Bay 2.5\" logic: the workloads that pick the 28 SFF configuration are compute-active, so do not under-spec.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6230 (20 cores, 2.1 GHz, 125W TDP):\u003c\/strong\u003e Sweet spot for vSAN OSA HCI and general SDS. Forty cores per chassis is more than adequate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248 (20 cores, 2.5 GHz, 150W TDP):\u003c\/strong\u003e When the chassis hosts a high-density VDI cluster or a database server with active OLTP. Higher clock for latency-sensitive workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold 6248R (24 cores, 3.0 GHz, 205W TDP):\u003c\/strong\u003e For database servers running OLTP on 28 SSDs where both core count and clock speed matter. Requires high-performance heatsink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatinum 8280 (28 cores, 2.7 GHz, 205W TDP):\u003c\/strong\u003e When core count drives the licensing or capacity planning for very high VM density.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHeatsink mismatch above 150W is the trap.\u003c\/strong\u003e Any processor above 150W TDP requires the high-performance heatsink. The standard heatsink will thermally throttle under sustained load. This trap is common on this variant because the workloads (VDI, large database, dense HCI) tend to pick higher-TDP CPUs. Confirm the heatsink at quote time against the CPU TDP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e A single-socket build on this chassis is even more costly than on other R740xd variants because the PCIe budget is already reduced by the rear-bay assembly. Single-socket on a GPU-equipped + RFB build is not a configuration we will ship without an explicit reason.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStorage-dense thermal note:\u003c\/strong\u003e 28-drive configurations run hotter than 24-drive configurations because of the additional rear-bay drives. The thermal envelope is unchanged but headroom is smaller. For Gold 6248 or above with GPU, confirm ambient temperature and rack airflow at quote time.\u003c\/p\u003e\u003ch2\u003eMemory\u003c\/h2\u003e\u003cp\u003e24 DDR4 DIMM slots: 12 per CPU, 6 channels per CPU, 2 DIMMs per channel. Supports RDIMM up to 128 GB per DIMM, LRDIMM up to 256 GB per DIMM. Maximum capacity 3 TB with 128 GB RDIMMs at 2 DPC, 6 TB with 256 GB LRDIMMs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMemory speed by population and generation:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkylake (V1):\u003c\/strong\u003e DDR4-2666 at 1 DPC, DDR4-2666 at 2 DPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) Gold 6200 \/ 5222 SKUs:\u003c\/strong\u003e DDR4-2933 at 1 DPC, drops to DDR4-2666 at 2 DPC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCascade Lake (V2) other SKUs:\u003c\/strong\u003e DDR4-2666 at any population\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFull memory population is the right call for high-density deployments on this chassis.\u003c\/strong\u003e The VDI, large database, and dense HCI workloads that pick the 28-SFF configuration push memory capacity hard. RDIMM at 32 GB or 64 GB is the volume sweet spot; LRDIMM at 128 GB or 256 GB per DIMM becomes the right call when you specifically need 1.5 TB or higher total capacity, which is more common on this variant than on the bulk-storage LFF variants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWorkload sizing guidance:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evSAN OSA HCI with 4 disk groups:\u003c\/strong\u003e 512 to 768 GB is typical. vSAN benefits from memory for the cache layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeph hyperconverged with tiered OSDs:\u003c\/strong\u003e 384 to 768 GB depending on OSD count and PG count.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery-high-density VDI (60 to 100 users):\u003c\/strong\u003e 768 GB to 1.5 TB depending on user profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge SQL Server consolidation:\u003c\/strong\u003e 1 TB to 1.5 TB for serious workloads with large buffer pools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNVDIMM-N:\u003c\/strong\u003e Up to 12 NVDIMM-N modules (16 GB each). Same chassis-specific constraint as on the standard 24-Bay 2.5\": NVDIMM-N battery on GPU shroud blocks full-length GPUs on riser 2. NVDIMM-N is uncommon on this variant in practice because the workloads that pick + 4-Bay RFB tend to be HCI or VDI rather than write-ahead-log applications, but confirm at quote time if NVDIMM-N is in your spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNVMe bifurcation BIOS setting:\u003c\/strong\u003e Flex-zone NVMe drives in the front bays and any PCIe-attached NVMe carrier require bifurcation enabled in BIOS. Default BIOS does not enable bifurcation. We set this at burn-in for any unit shipped with flex-zone NVMe.\u003c\/p\u003e\u003ch2\u003eNetworking and PCIe Expansion\u003c\/h2\u003e\u003cp\u003eThe R740xd uses Dell's Network Daughter Card (NDC) mezzanine standard. The NDC slot is dedicated and does not consume a PCIe slot, which matters even more on this chassis than on the standard 24-Bay 2.5\" because PCIe slot budget is already tight from the rear-bay assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNDC port options:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 1 GbE:\u003c\/strong\u003e Base option. Not recommended for HCI or VDI deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 10 GbE + 2x 1 GbE:\u003c\/strong\u003e Acceptable mixed option.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4x 10 GbE:\u003c\/strong\u003e Baseline for general virtualization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x 25 GbE (Mellanox ConnectX-4 Lx):\u003c\/strong\u003e Our standard recommendation for HCI on this chassis. vSAN OSA cache-tier east-west traffic and Ceph replication traffic both benefit materially from 25 GbE over 10 GbE.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e100 GbE:\u003c\/strong\u003e Not available as NDC. If 100 GbE is the requirement, it goes in a PCIe slot. On this chassis the slot budget is tight (rear-bay takes one riser, flex-zone NVMe takes more if equipped), so 100 GbE competes for a limited remaining slot. ConnectX-5 is the right card; ConnectX-6 needs PCIe Gen4 which this platform does not provide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots on the chassis, dropping to roughly 5 to 6 effective slots because riser 3 is consumed by rear-bay cabling. With flex-zone NVMe controller cards in play, the budget tightens further. A fully-loaded + 4-Bay RFB build with 12 NVMe flex-zoned, 2 GPUs, 100 GbE, and an external HBA is genuinely at the chassis PCIe ceiling; we work through the slot map at quote time and tell you what does not fit.\u003c\/p\u003e\u003ch2\u003eGPU Support\u003c\/h2\u003e\u003cp\u003eGPU is available on this variant but with a hard cap of 2 double-width 300W cards (down from 3 on the standard 24-Bay 2.5\"). The third GPU riser slot is consumed by the rear-bay assembly. If you need 3 GPUs, the standard 24-Bay 2.5\" is the right call.\u003c\/p\u003e\u003cp\u003ePractical GPU + 28-SFF configurations:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x double-width 300W GPU + 28 SFF (no flex-zone NVMe):\u003c\/strong\u003e CUDA \/ ML inference deployments with all-SSD data tier. The 2-GPU cap is the binding constraint vs the standard 24-Bay 2.5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x double-width 300W GPU + 28 SFF + flex-zone NVMe + 100 GbE:\u003c\/strong\u003e Single-GPU configurations preserve slot budget for additional networking and flex-zone NVMe controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 x single-width 150W T4 + 28 SFF:\u003c\/strong\u003e VDI with vGPU at high user density. The T4 single-width form factor fits more cards in the reduced slot budget than double-wide.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eGPU enablement kit:\u003c\/strong\u003e Required for GPU-equipped builds. We add it to every GPU BOM by default. Same kit and same considerations as on the standard 24-Bay 2.5\".\u003c\/p\u003e\u003ch2\u003eManagement - iDRAC9 Generation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eiDRAC9 Enterprise is the production spec.\u003c\/strong\u003e Full remote KVM with HTML5 console, virtual media, OpenManage Enterprise integration, Lifecycle Controller, Quick Sync 2 wireless management. Express tier is insufficient for unattended deployment; we spec Enterprise on every BOM by default. The rear-bay drive health metrics appear in the same iDRAC drive enumeration as the front bays, simplifying fleet-wide health monitoring through OpenManage Enterprise.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSilicon Root of Trust\u003c\/strong\u003e via the Intel platform. TPM 2.0 module supported. Cryptographically signed firmware verification at boot. Meets HIPAA, PCI DSS, CMMC, and federal civilian compliance requirements.\u003c\/p\u003e\u003cp\u003eSecure Boot, BIOS recovery, signed firmware updates, and System Erase clear the bar for FedRAMP, DoD, and financial services environments without third-party add-ons. OpenManage Enterprise handles fleet-wide firmware management, configuration templates, and compliance reporting across all 28 drives.\u003c\/p\u003e\u003ch2\u003ePower and Cooling\u003c\/h2\u003e\u003cp\u003eHot-swap redundant Dell Flex Slot PSUs: 495W, 750W (Platinum and Titanium), 1100W Platinum, 1600W Platinum, 2000W, 2400W. The 28-drive load draws marginally more than the 24-drive variant; SSDs are low-idle-power so the drive-count delta is modest, but GPU configurations push total draw substantially higher.\u003c\/p\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePSU Recommendation\u003c\/th\u003e\n\u003cth\u003eEst. Peak Draw\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight: Silver 4214, 96 GB RAM, 16x SSD, no GPU\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~360W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced HCI: Gold 6230, 384 GB RAM, 28x SSD, 2x 25 GbE\u003c\/td\u003e\n\u003ctd\u003e2x 1100W Platinum\u003c\/td\u003e\n\u003ctd\u003e~640W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeavy HCI + cache tier: Gold 6248, 768 GB RAM, 28x mixed SSD\/NVMe\u003c\/td\u003e\n\u003ctd\u003e2x 1600W Platinum\u003c\/td\u003e\n\u003ctd\u003e~820W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPU + 28x SSD: Gold 6248, 384 GB RAM, 2x 300W GPU\u003c\/td\u003e\n\u003ctd\u003e2x 2000W Platinum\u003c\/td\u003e\n\u003ctd\u003e~1280W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpin-up current at scale:\u003c\/strong\u003e Less material on SSD than on spinning disk (SSDs do not have a mechanical spin-up surge), but flex-zone NVMe drives initialize aggressively at power-on. Multi-unit + RFB deployments on the same PDU should still coordinate boot sequencing for GPU-equipped builds, where simultaneous GPU power-on across multiple chassis can briefly load the upstream breaker harder than steady-state suggests.\u003c\/p\u003e\u003cp\u003eCooling is the standard 14th gen 2U fan kit, hot-swap, N+1 redundancy. The high-performance fan kit is the right call for GPU-equipped builds and for very-high-density VDI deployments where sustained CPU+GPU load is the operating profile.\u003c\/p\u003e\u003ch2\u003ePhysical Specs \u0026amp; Platform Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 2U rack. Approximate dimensions 86.8 mm x 482.0 mm x 715.5 mm (H x W x D) with bezel. Identical chassis envelope to the rest of the R740xd family. Rear bays are flush with the rear panel; no additional depth required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe expansion:\u003c\/strong\u003e Up to 8 PCIe Gen3 slots, dropping to roughly 5 to 6 effective slots after rear-bay cabling consumes riser 3. Riser configurations 1A \/ 1B \/ 2A \/ 2B available for the remaining risers; riser 3 is occupied by definition on this variant. With flex-zone NVMe controllers in play, slot budget tightens further; we work through the slot map at quote time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParts availability:\u003c\/strong\u003e Excellent through 2030 minimum. The + 4-Bay RFB variant is lower volume than the standard 24-Bay 2.5\" but the rear-bay assembly and the underlying chassis parts are abundant on the secondary market. Dell ProSupport channels remain active in 2026; third-party maintenance for 14th gen Dell is mature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories we recommend:\u003c\/strong\u003e Dell ReadyRails II sliding rail kit for the R740xd (confirm part number at quote time against your chassis revision and cabinet depth), cable management arm (strongly recommended on this variant for rear-bay service access), Dell LCD bezel for the R740xd 2U chassis (confirm part number at quote time against your chassis revision), GPU enablement kit for GPU-equipped configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform notes:\u003c\/strong\u003e CPU hot-plug is not supported. NVMe bifurcation must be set in BIOS before flex-zone NVMe carriers will enumerate; default BIOS does not enable bifurcation. Mid-bay and rear-bay are mutually exclusive; pick one architectural direction at order time. Riser configuration is locked at order time. The SAS expander backplane firmware should be verified at intake for refurbished units. Rear-bay assembly is part of the physical chassis specification and cannot be field-converted.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOur Assessment\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhere it excels:\u003c\/strong\u003e Maximum SFF density on a 14th gen Dell chassis with clean physical separation between front and rear drive groups. The reference vSAN OSA HCI configuration on this variant - 4 rear NVMe cache + 24 front SSD capacity, 4 disk groups, HBA330 pass-through, 25 or 100 GbE networking - is one of the cleanest single-chassis HCI nodes available on the secondary market. Ceph hyperconverged deployments with tiered OSDs follow the same pattern. Large SQL Server consolidations with separate log\/data\/tempdb placement across the front and rear groups. Very-high-density VDI hosts at 60 to 100 users per chassis with vGPU.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere to look instead:\u003c\/strong\u003e If 24 SFF is sufficient and full PCIe slot count matters, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003estandard 24-Bay 2.5\"\u003c\/a\u003e companion is cleaner. If you need 3 double-width GPUs, the standard 24-Bay 2.5\" is the only R740xd variant that supports it (this variant caps at 2). If you need 24 NVMe drives across a native PCIe-attached backplane, the \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003e24-Bay 2.5\" NVMe\u003c\/a\u003e companion is the dedicated specialist. If you need bulk capacity at lowest cost-per-TB, the \u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003e12-Bay 3.5\"\u003c\/a\u003e with NL-SAS is the right call. If you need scale-out for better redundancy than single-chassis 28 SFF, two standard 24-Bay 2.5\" hosts in a cluster is often the better answer than packing 28 drives into one chassis.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom line:\u003c\/strong\u003e The + 4-Bay RFB is the right call for a specific buyer: the HCI architect building a single-chassis vSAN OSA or Ceph node with explicit cache + capacity tier separation, the database architect consolidating onto 28 spindles with separate I\/O placement, or the VDI architect packing 60 to 100 users with vGPU into a single 2U envelope. About half our quote conversations on this variant end with us steering the buyer to the standard 24-Bay 2.5\" because the rear-bay justification is not specifically about cache tiering or physical group separation; the other half are the right buyer for this variant. For that buyer, this is the configuration with a 4 to 6 year deployment horizon and significant TCO savings vs current-gen hardware.\u003c\/p\u003e\u003ch2\u003eWhere the R740xd Fits in 2026\u003c\/h2\u003e\u003cp\u003eThe R740xd is 14th gen Dell PowerEdge (Skylake-SP 2017, Cascade Lake 2019). Mature, well-supported on the secondary market, our highest-velocity 14th gen storage SKU family. Dell ProSupport on the R740xd is approaching end-of-extended-support; third-party maintenance is the standard production support path in 2026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 13th gen R730xd:\u003c\/strong\u003e Skip the R730xd unless you have a hard cost ceiling. The R740xd brings Skylake or Cascade Lake (vs Broadwell), DDR4 (vs DDR3), iDRAC9 with Silicon Root of Trust, and a 4 to 6 year longer parts availability runway.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 15th gen R750xd (Ice Lake, 2021):\u003c\/strong\u003e R750xd adds PCIe Gen4 (doubled bandwidth for NVMe and 100 GbE), DDR4-3200, 32 DIMM slots, and 3rd Gen Xeon Scalable. The 15th gen rear-bay variants exist with similar architectural tradeoffs. For workloads bottlenecked on memory bandwidth or PCIe Gen4 I\/O, R750xd is the upgrade path. For SFF density HCI on a budget, R740xd + 4-Bay RFB is still competitive.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. 16th gen R760xd2:\u003c\/strong\u003e R760xd2 is the current production storage-dense 2U with DDR5-5600, PCIe Gen5, up to 64 cores per socket on Emerald, BOSS-N1 NVMe boot, PERC H965i tri-mode (hardware NVMe RAID). For workloads in production past 2030 or needing current-gen support contracts, R760xd2 is the right step up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003evs. HPE counterpart:\u003c\/strong\u003e The cross-vendor analog is the HPE ProLiant DL380 Gen10 24 SFF + rear-bay chassis. Same Purley dual-socket platform vocabulary, comparable iLO 5 management, comparable PSU envelope. The HPE variant offers similar 28-SFF density with similar architectural tradeoffs; the Dell-side advantage in 2026 is supply depth on this specific configuration and OpenManage Enterprise maturity for fleet management.\u003c\/p\u003e\u003ch2\u003eHonest Limitations\u003c\/h2\u003e\u003cp\u003eLimitations specific to this chassis (in addition to the platform-level limits shared with the rest of the R740xd family):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe slot count is reduced.\u003c\/strong\u003e Riser 3 is consumed by rear-bay cabling. Effective PCIe slot count drops from 8 (standard 24-Bay) to roughly 5 to 6 slots. Confirm your PCIe card list at quote time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPU envelope is capped at 2 double-wide.\u003c\/strong\u003e The third GPU slot is consumed by rear-bay cabling. If 3 GPUs are required, the standard 24-Bay 2.5\" is the variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMid-bay and rear-bay are mutually exclusive.\u003c\/strong\u003e Cannot have both. The standard 24-Bay 2.5\" with mid-bay also gives 28 SFF total but with different PCIe and GPU tradeoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear-bay service access requires rack rear clearance.\u003c\/strong\u003e CMA installation is strongly recommended to keep cabling out of the rear-bay service path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e28-drive arrays need careful RAID strategy.\u003c\/strong\u003e Single 28-drive RAID 6 has impractical rebuild windows and excessive parity overhead. RAID 60 (multiple smaller RAID 6 spans) is the recommended pattern for traditional RAID at this drive count. SDS deployments avoid the issue with HBA330 pass-through.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware NVMe RAID is not available on 14th gen.\u003c\/strong\u003e Flex-zone NVMe drives are on software RAID or pass-through. For hardware NVMe RAID, step to 16th gen R760xd2 with PERC H965i.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe Gen3 ceiling.\u003c\/strong\u003e All slots and the backplane are PCIe 3.0. PCIe Gen4 cards run at Gen3 speeds. Upgrade path is 15th gen (Gen4) or 16th gen (Gen5).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory speed drops at 2 DPC on V2 Cascade Lake.\u003c\/strong\u003e 2933 MT\/s at 1 DPC, 2666 MT\/s at 2 DPC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-TDP heatsink mandatory above 150W.\u003c\/strong\u003e The dense workloads on this variant pick higher-TDP CPUs; the heatsink mismatch trap is common.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-socket disables half the platform.\u003c\/strong\u003e Particularly costly on this variant where the PCIe budget is already tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBay configuration is order-time locked.\u003c\/strong\u003e The rear-bay assembly is part of the physical chassis specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVDIMM-N + GPU shroud constraints apply.\u003c\/strong\u003e NVDIMM-N battery on GPU shroud blocks full-length GPUs on riser 2.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWorkload Fit\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f0f0f0;\"\u003e\n\u003cth\u003eWorkload\u003c\/th\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003evSAN OSA HCI with cache\/capacity tiers\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003e4 rear NVMe cache + 24 front SSD capacity. Textbook config.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeph HCI with tiered OSDs\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003ctd\u003eSimilar pattern: rear cache, front capacity OSDs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVery-high-density VDI (60-100 users)\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003e28 SFF SSDs for user storage; 1-2 GPUs for vGPU.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLarge SQL Server consolidation\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003e28 spindles, H740P write cache, separate log\/data\/tempdb placement.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCeph all-flash OSD with rear-bay journals\u003c\/td\u003e\n\u003ctd\u003eStrong\u003c\/td\u003e\n\u003ctd\u003eFront 24 = BlueStore OSDs; rear 4 = WAL+DB tier.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGeneral-purpose virtualization\u003c\/td\u003e\n\u003ctd\u003eMarginal\u003c\/td\u003e\n\u003ctd\u003eStandard 24-Bay 2.5\" is usually sufficient and cheaper.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple-GPU deployments\u003c\/td\u003e\n\u003ctd\u003eGPU envelope reduced\u003c\/td\u003e\n\u003ctd\u003eUse standard 24-Bay 2.5\" for 3-GPU configs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeployments needing 8 PCIe slots\u003c\/td\u003e\n\u003ctd\u003ePCIe constrained\u003c\/td\u003e\n\u003ctd\u003eRear-bay cabling consumes riser 3.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll-NVMe (24+ drives)\u003c\/td\u003e\n\u003ctd\u003eWrong chassis\u003c\/td\u003e\n\u003ctd\u003eUse 24-Bay 2.5\" NVMe companion.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulk capacity at lowest cost-per-TB\u003c\/td\u003e\n\u003ctd\u003eWrong drive class\u003c\/td\u003e\n\u003ctd\u003eUse 12-Bay 3.5\" with NL-SAS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhere to Look Instead\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003eR740xd 24-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e Standard SFF companion without rear bay. Choose for full PCIe slot count or 3-GPU configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-3-5-chassis\"\u003eR740xd 12-Bay 3.5\"\u003c\/a\u003e:\u003c\/strong\u003e LFF bulk capacity reference page for NL-SAS deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-12-bay-2-bay-lff-rfb-build-your-own\"\u003eR740xd 12-Bay 3.5\" + 2-Bay LFF RFB\u003c\/a\u003e:\u003c\/strong\u003e The LFF equivalent of this variant. Same architectural pattern (more bays, fewer PCIe slots) but in LFF form.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-nvme-chassis\"\u003eR740xd 24-Bay 2.5\" NVMe\u003c\/a\u003e:\u003c\/strong\u003e All-NVMe companion. Choose when 24 NVMe drives across a native PCIe-attached backplane is the requirement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/dell-poweredge-r740-16-bay-2-5-chassis\"\u003eR740 16-Bay 2.5\"\u003c\/a\u003e:\u003c\/strong\u003e Compute-balanced 2U companion. Choose when 16 SFF is sufficient and storage density is not the constraint.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReady to Configure?\u003c\/h2\u003e\u003cp\u003eTell us your workload, target CPU class, memory capacity, drive configuration (SAS\/SATA\/NVMe flex-zoning mix, capacity per drive, how you intend to use the 4 rear bays: cache tier, hot-spares + OS, or additional capacity), RAID strategy, GPU requirements if any, network bandwidth, and quantity. Our account team will put together a tailored quote within 24 hours. Not sure if the rear flex bay is worth the PCIe and GPU tradeoffs? Tell us about your workload and we will recommend the standard 24-Bay 2.5\" companion, the mid-bay alternative path to 28 SFF, or a small scale-out cluster if the rear-bay justification is not strong. That conversation is part of the quote process.\u003c\/p\u003e\u003cp\u003eCall \u003cstrong\u003e1-800-778-1545\u003c\/strong\u003e for our account team. Every R740xd ships with a \u003cstrong\u003e180-day\u003c\/strong\u003e standard warranty, runs through our \u003cstrong\u003e12+ hour\u003c\/strong\u003e burn-in with full SMART validation on every drive bay including the rear pair and load-testing on every GPU slot if equipped, and qualifies for volume pricing at \u003cstrong\u003e5 units\u003c\/strong\u003e and above. \u003ca href=\"\/pages\/quote-cart\"\u003eRequest a Quote\u003c\/a\u003e | \u003ca href=\"\/pages\/contact\"\u003eContact our account team\u003c\/a\u003e\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":45951312658631,"sku":"BP-013764","price":865.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/files\/dell-poweredge-r740xd-24-bay-with-4-bay-25-rfb-365134.png?v=1765539751"},{"product_id":"dell-poweredge-r740xd-24-bay-nvme-build-your-own","title":"Dell PowerEdge R740xd 24-Bay 2.5\" NVMe Drives","description":"\u003cp\u003eThe R740xd 24-Bay NVMe is Dell's maximum-density native NVMe platform in the 14th-generation 2U lineup — twenty-four 2.5\" hot-swap bays connected directly to the CPU's PCIe lanes via a purpose-built NVMe backplane. This is not a SAS\/SATA backplane with NVMe cards retrofitted — every bay is native NVMe, every drive connects at full PCIe bandwidth without controller overhead. At 24 bays, this platform enables NVMe cluster configurations that are otherwise only achievable with dedicated all-flash array appliances, at enterprise server economics.\u003c\/p\u003e\u003cp\u003eWe deploy this configuration for the most demanding storage performance requirements in the R740 family: large vSAN all-flash deployments running vSAN ESA architecture, NVMe-oF disaggregated storage targets serving high-concurrency compute clusters, and database platforms where sub-100 microsecond latency across a large drive population is a measured SLA. If NVMe performance at scale is the requirement, this is the platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant architectural note:\u003c\/strong\u003e Native NVMe at 24 bays requires significant PCIe bandwidth. The platform manages this through PCIe bifurcation across multiple root complexes — but additional PCIe expansion cards (NICs, HBAs, GPUs) compete for the same PCIe bandwidth budget. We validate PCIe lane allocation for every 24-bay NVMe configuration before quoting. Do not assume your preferred expansion card combination is automatically compatible — let the quote process verify it.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eProcessors\u003c\/h2\u003e\u003cp\u003eDual 2nd Generation Intel Xeon Scalable (Cascade Lake). For NVMe-intensive deployments, CPU selection is more critical than on spinning disk configurations — NVMe drives connect directly to CPU PCIe lanes and high-IOPS storage workloads consume CPU cycles for I\/O completion processing that a SAS HBA would otherwise handle in hardware. Gold-tier processors with 20+ cores are our standard recommendation: Gold 6230 (20 cores, 125W), Gold 6248 (20 cores, 150W), or Platinum 8260 (24 cores, 165W) for maximum NVMe throughput capacity.\u003c\/p\u003e\u003cp\u003eHigh-TDP heatsink and fan requirement for processors above 150W applies — the 24-bay NVMe configuration generates significant heat from drive activity and requires correct chassis thermal management.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eMemory\u003c\/h2\u003e\u003cp\u003e24 DDR4 DIMM slots. For NVMe workloads at this scale, memory is a critical design variable. vSAN ESA with 24 NVMe drives has specific memory reservation requirements per disk group — calculate these before finalizing DIMM count. For NVMe-oF storage targets, the host memory stack that manages NVMe namespaces and fabric connections has meaningful overhead at 24-drive scale. We include memory sizing validation for every NVMe configuration we quote.\u003c\/p\u003e\u003cp\u003eOptane PMem is supported and particularly interesting alongside NVMe storage: PMem in App Direct mode provides a persistent memory tier above NVMe SSDs — useful for database log volumes, write-ahead logs, and caching architectures that need durability without the latency of NVMe writes.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eStorage — 24 Native NVMe Bays\u003c\/h2\u003e\u003cp\u003eTwenty-four U.2 NVMe SSDs on a purpose-built NVMe backplane. Drive selection has significant implications for performance, endurance, and cost:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eMixed-use NVMe (1–3 DWPD):\u003c\/strong\u003e For vSAN cache tier drives, write-intensive database storage, and any configuration with sustained write workloads. Do not use read-intensive drives for cache tier or write-heavy workloads — the endurance mismatch causes premature wear that isn't always visible until drives begin failing.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eRead-intensive NVMe (0.1–1 DWPD):\u003c\/strong\u003e For vSAN capacity tier, read-dominant database storage, object storage capacity tiers, and any configuration where writes are infrequent. Lower cost per TB than mixed-use drives with equivalent read performance.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eCapacity NVMe (high capacity, read-intensive):\u003c\/strong\u003e Newer high-capacity NVMe SSDs (up to 15 TB per drive in enterprise U.2 format) enable 24-bay configurations approaching 360 TB raw — at NVMe latency. This is the configuration for deployments where both capacity and NVMe performance are requirements that previously required multiple separate appliances.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNVMe endurance assessment on refurbished units:\u003c\/strong\u003e Every NVMe drive in a refurbished configuration is assessed for remaining endurance using SMART data and vendor tooling. We do not ship drives with significant endurance consumption without full disclosure and pricing adjustment. This is a non-negotiable part of our NVMe refurbishment process.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBOSS module:\u003c\/strong\u003e Mandatory. All 24 bays for NVMe data storage.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eRAID \/ Storage Management\u003c\/h2\u003e\u003cp\u003eNVMe drives in this chassis connect directly to CPU PCIe lanes — traditional PERC RAID controllers do not manage NVMe backplane drives. Redundancy must be managed at the software layer:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eVMware vSAN ESA \/ OSA:\u003c\/strong\u003e vSAN manages NVMe drive redundancy through storage policies. HBA330 or equivalent pass-through for any SAS\/SATA auxiliary drives — the NVMe backplane connects directly without a controller intermediary.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSoftware RAID (ZFS, mdraid):\u003c\/strong\u003e For Linux-based NVMe-oF targets or object storage deployments managing redundancy at the software layer.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNVMe-oF target software:\u003c\/strong\u003e SPDK, nvmet, or vendor-specific NVMe-oF target stacks manage drive access and fabric presentation for disaggregated storage architectures.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eNetworking\u003c\/h2\u003e\u003cp\u003eAt 24 NVMe drives, the network is almost certainly the first bottleneck in any client-facing deployment. A single modern NVMe SSD can saturate a 10 GbE link — 24 drives simultaneously could generate throughput that exceeds 100 GbE if the workload pattern allows it. Our recommendations:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eDual-port 25 GbE SFP28:\u003c\/strong\u003e Minimum viable for vSAN all-flash nodes in production deployments.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDual-port 100 GbE QSFP28:\u003c\/strong\u003e Our recommendation for NVMe-oF targets and high-concurrency vSAN clusters where network bandwidth must keep pace with storage performance.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003e200 Gb\/s InfiniBand HDR:\u003c\/strong\u003e For NVMe-oF deployments requiring maximum fabric bandwidth and RDMA capability. Contact us for InfiniBand NIC availability and configuration at quote time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003ePower Supplies\u003c\/h2\u003e\u003cp\u003e2x 1600W Platinum required for fully-populated 24-NVMe configurations. NVMe drives at 24-unit population draw approximately 150–240W steady-state (6–10W per drive depending on model and load state), plus CPU and memory draw. Total system draw at full load: 1000–1300W depending on CPU TDP selection. 1600W PSUs with redundant configuration provide appropriate headroom.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eOur Assessment\u003c\/h2\u003e\u003cp\u003eThe R740xd 24-Bay NVMe occupies a specific and compelling position in the market: enterprise server economics with dedicated all-flash appliance NVMe drive density. It is not a general-purpose server with NVMe bolted on — it is a purpose-built NVMe storage platform that also runs a full enterprise compute stack. The workloads that justify this configuration are specific and demanding: large-scale vSAN ESA deployments, NVMe-oF disaggregated storage in high-concurrency compute environments, and databases where latency at scale is a measured business requirement.\u003c\/p\u003e\u003cp\u003eIf your workload needs NVMe performance at 24-drive scale, this is the refurbished platform to evaluate. If you need fewer NVMe drives, the R640 10-Bay NVMe or R740xd at lower bay counts may provide a more cost-effective solution for your specific requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere to look instead:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eFewer NVMe drives needed?\u003c\/strong\u003e → \u003ca href=\"\/products\/dell-poweredge-r640-10-bay-nvme-chassis\"\u003eR640 10-Bay NVMe\u003c\/a\u003e or R740xd at lower bay count\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNeed SAS\/SATA flexibility?\u003c\/strong\u003e → \u003ca href=\"\/products\/dell-poweredge-r740xd-24-bay-2-5-chassis\"\u003eR740xd 24-Bay 2.5\" SAS\/SATA\u003c\/a\u003e\n\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNeed PCIe Gen4 NVMe?\u003c\/strong\u003e → R750xa (contact us for availability)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eWorkload Fit\u003c\/h2\u003e\u003ctable\u003e  \u003ctr\u003e\n\u003cth\u003eThis server excels at\u003c\/th\u003e\n\u003cth\u003eConsider alternatives for\u003c\/th\u003e\n\u003c\/tr\u003e  \u003ctr\u003e\n\u003ctd\u003e✅ VMware vSAN ESA all-flash at scale\u003c\/td\u003e\n\u003ctd\u003e❌ Fewer than 12 NVMe drives needed\u003c\/td\u003e\n\u003c\/tr\u003e  \u003ctr\u003e\n\u003ctd\u003e✅ NVMe-oF disaggregated storage targets\u003c\/td\u003e\n\u003ctd\u003e❌ Hardware RAID for all volumes\u003c\/td\u003e\n\u003c\/tr\u003e  \u003ctr\u003e\n\u003ctd\u003e✅ High-concurrency NVMe database platforms\u003c\/td\u003e\n\u003ctd\u003e❌ PCIe Gen4 NVMe performance (use R750xa)\u003c\/td\u003e\n\u003c\/tr\u003e  \u003ctr\u003e\n\u003ctd\u003e✅ Sub-100μs latency at 24-drive scale\u003c\/td\u003e\n\u003ctd\u003e❌ LFF capacity or SAS\/SATA flexibility needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eReady to Configure?\u003c\/h2\u003e\u003cp\u003e24-bay NVMe configurations start with a design conversation — PCIe lane allocation, vSAN architecture (ESA vs. OSA), drive endurance selection, network fabric sizing, and power budget all require validation before hardware ships. Contact our account team with your NVMe workload requirements, target drive count, fabric architecture (vSAN, NVMe-oF, software RAID), and quantity. We return a validated configuration and formal pricing within 24 hours.\u003c\/p\u003e","brand":"Dell","offers":[{"title":"Default Title","offer_id":45951312855239,"sku":"BP-013766","price":2081.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/files\/dell-poweredge-r740xd-24-bay-nvme-server-904758.png?v=1765539751"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4493\/0247\/collections\/poweredge-r740xd-491613.jpg?v=1765540187","url":"https:\/\/wholesaleservers.com\/collections\/dell-poweredge-r740xd-servers.oembed","provider":"Wholesale Servers","version":"1.0","type":"link"}