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Technical data sheet · ProLiant Gen11 compact rack · 1U single-socket

HPE ProLiant DL20 Gen11Specifications, configurations & comparisons

The ProLiant DL20 Gen11 is HPE’s compact one-socket 1U rack server: 37.84 cm deep in SFF form, with four DDR5 UDIMM slots and, since HPE removed the Xeon E-2400 option kits as obsolete, a Xeon 6300 or Pentium G7400 in configure-to-order builds. HPE aims it at space-constrained sites. This sheet maps its three chassis, the storage and power choices, and the ordering rules that constrain them.

1U Rack1 socketXeon 6300Xeon E-2400PentiumHPE iLO 6
12cores per CPUsingle socket · Xeon 6300
128GBDDR5 maximum4 DIMM slots
6drive bays4 drive-cage kits
2GPU options2 accelerators listed
1,000Wlargest PSU7 supply options
18processor SKUs3 families
Configure a DL20 Gen11 →Get a UK quoteRefurbished alternatives ↓

Every figure checked against the HPE ProLiant DL20 Gen11 QuickSpecs (Version 28 - 08-Sep-2026)

HPE ProLiant DL20 Gen11 4SFF front: blanked optical bay, four hot-plug SFF bays, iLO service and USB ports, NS204i-u bay, front fan assembly123456
  1. 1Optical drive bay, blanked (DVD-ROM or DVD-RW option; not with the 2SFF kit)
  2. 2Four-bay SFF hot-plug drive cage
  3. 3iLO service port (USB)
  4. 4USB 3.2 Gen1 port
  5. 5NS204i-u boot device bay (optional)
  6. 6Front fan assembly (two of the three system fans)

Image: Hewlett Packard Enterprise

Form factor
1U Rack · 1 socket
Processors
Xeon 6300 · Xeon E-2400 · Pentium
Memory
4 × DDR5 UDIMM · up to 128GB
Drive bays
Up to 6 · 4 drive-cage kits
Expansion
1 × PCIe · 1 × OCP 3.0
GPUs
2 listed
Boot
M.2 and NS204i · 2 boot options
Management
HPE iLO 6
01 — Overview

The DL20 Gen11 at a glance

Our read of HPE’s documentation: where the DL20 Gen11 is strong, and the limits worth knowing before you spec one.

Strengths

  • Compact: HPE lists a depth of 37.84 cm for the SFF chassis and 38.22 cm for the LFF one, at 4.32 cm high and 43.46 cm wide.
  • The Flex Slot supplies (500 W, 800 W or 1000 W) are hot-plug and can be paired for 1+1 redundancy — the 290 W entry unit cannot.
  • HPE lets the internal OROC storage slot and the external OCP 3.0 slot be used together, so a controller in the OROC slot leaves both the OCP slot and the PCIe 5.0 x16 slot free.
  • Four 1GbE ports come on the board (Broadcom BCM5719) before any adapter is added.
  • Quiet in HPE’s measurements: 27–28 dBA at the bystander position in all four test builds, idle and operating.

Watch-outs

  • Memory stops at 128 GB (4 × 32 GB UDIMM), and populating both DIMMs in a channel lowers the speed to 4000 MT/s with 16 GB modules or 3600 MT/s with 32 GB ones.
  • The Xeon E-2400 option kits are gone: Versions 26 and 28 of the QuickSpecs removed them as obsolete, so factory builds now choose from nine Xeon 6300 parts or the two-core Pentium G7400.
  • Six SFF drives is the ceiling, and only two can be NVMe — the U.3 drives need the 2SFF kit and HPE restricts them to 25 °C ambient environments.
  • No SR-IOV, and port 1 of the embedded NIC carries iLO traffic unless you add the enablement kit that provides a dedicated management port.
  • The three fans are single-rotor, not hot-plug and not redundant.
  • The 2LFF non-hot-plug model is the most limited: HPE lists just 1 TB and 4 TB NHP SATA drives for it, 8 TB in all, and Tri-Mode controllers are not supported.
Processors18 SKUs
Cores / CPU2–12
DIMM slots4
Drive-cage kits4
Max bays6
GPUs2 listed
PSU options7 · to 1,000 W
02 — Processors

18 supported processors, mapped

HPE’s feature table lists 18 processors — nine Xeon 6300, eight Xeon E-2400 and one Pentium G7400 — but the ordering step now offers only the nine Xeon 6300 kits and the Pentium, the Xeon E kits having been removed as obsolete. Every part pairs with 4400 MT/s memory and none goes beyond 12 cores or 95 W, so the decision comes down to cores, clock speed and TDP.

Processor landscape — cores × TDP

18 SKUs · 3 families
HPE ProLiant DL20 Gen11: every supported processor by cores and TDP08160 W50 W100 WCores per processorIntel Xeon 6377P — 12 cores · 95 W · 3.1 GHz base · 36 MB cache · DDR5-4400Intel Xeon 6369P — 8 cores · 95 W · 3.3 GHz base · 24 MB cache · DDR5-4400Intel Xeon 6357P — 8 cores · 80 W · 3 GHz base · 24 MB cache · DDR5-4400Intel Xeon 6353P — 8 cores · 65 W · 2.7 GHz base · 24 MB cache · DDR5-4400Intel Xeon 6349P — 6 cores · 95 W · 3.6 GHz base · DDR5-4400Intel Xeon 6337P — 6 cores · 80 W · 3.5 GHz base · 18 MB cache · DDR5-4400Intel Xeon 6333P — 6 cores · 65 W · 3.1 GHz base · 18 MB cache · DDR5-4400Intel Xeon 6325P — 4 cores · 55 W · 3.5 GHz base · 12 MB cache · DDR5-4400Intel Xeon 6315P — 4 cores · 55 W · 2.8 GHz base · 12 MB cache · DDR5-4400Intel Xeon E-2488 — 8 cores · 95 W · 3.2 GHz base · 24 MB cache · DDR5-4400Intel Xeon E-2478 — 8 cores · 80 W · 2.8 GHz base · 24 MB cache · DDR5-4400Intel Xeon E-2468 — 8 cores · 65 W · 2.6 GHz base · 24 MB cache · DDR5-4400Intel Xeon E-2486 — 6 cores · 95 W · 3.5 GHz base · 18 MB cache · DDR5-4400Intel Xeon E-2456 — 6 cores · 80 W · 3.3 GHz base · 18 MB cache · DDR5-4400Intel Xeon E-2436 — 6 cores · 65 W · 2.9 GHz base · 18 MB cache · DDR5-4400Intel Xeon E-2434 — 4 cores · 55 W · 3.4 GHz base · 12 MB cache · DDR5-4400Intel Xeon E-2414 — 4 cores · 55 W · 2.6 GHz base · 12 MB cache · DDR5-4400Intel Pentium G7400 — 2 cores · 46 W · 3.7 GHz base · 6 MB cache · DDR5-44006377P12 cores · 7.9 W/core — top SKU and most efficient
Xeon 6300 9Xeon E-2400 8Pentium 1Bubble size = L3 cache · hover a bubble for the full SKU

Processor explorer

filter · sort · compare
ProcessorCores / threadsBaseL3 cacheTDPW / coreMemory
Intel Xeon 6377P123.1 GHz36 MB95 W7.9DDR5-4400
Intel Xeon 6369P83.3 GHz24 MB95 W11.9DDR5-4400
Intel Xeon 6357P83 GHz24 MB80 W10.0DDR5-4400
Intel Xeon 6353P82.7 GHz24 MB65 W8.1DDR5-4400
Intel Xeon E-248883.2 GHz24 MB95 W11.9DDR5-4400
Intel Xeon E-247882.8 GHz24 MB80 W10.0DDR5-4400
Intel Xeon E-246882.6 GHz24 MB65 W8.1DDR5-4400
Intel Xeon 6349P63.6 GHz—95 W15.8DDR5-4400
Intel Xeon 6337P63.5 GHz18 MB80 W13.3DDR5-4400
Intel Xeon 6333P63.1 GHz18 MB65 W10.8DDR5-4400
Intel Xeon E-248663.5 GHz18 MB95 W15.8DDR5-4400
Intel Xeon E-245663.3 GHz18 MB80 W13.3DDR5-4400
Intel Xeon E-243662.9 GHz18 MB65 W10.8DDR5-4400
Intel Xeon 6325P43.5 GHz12 MB55 W13.8DDR5-4400
Intel Xeon 6315P42.8 GHz12 MB55 W13.8DDR5-4400
Intel Xeon E-243443.4 GHz12 MB55 W13.8DDR5-4400
Intel Xeon E-241442.6 GHz12 MB55 W13.8DDR5-4400
Intel Pentium G740023.7 GHz6 MB46 W23.0DDR5-4400
  • HPE’s two Xeon 6349P entries disagree: the feature table gives 2.7 GHz, 8 cores, 24 MB and 65 W, the option kit 3.6 GHz, 6 cores and 95 W.
  • The What’s New list still says Xeon 6300 support stops at 8 cores, yet the 12-core 6377P — added in Version 27 — is in the feature table and the option kits.
  • Choosing any 95 W processor adds an extra CPU baffle at the factory.
  • HPE notes that the two-core Pentium G7400 falls short of ENERGY STAR 4.0.
  • One processor only, on the Intel C262 chipset.
  • Two pre-configured servers built on the E-2434 and E-2414 are still printed in the document.
03 — Memory

4 DDR5 DIMM slots

Four ECC UDIMM slots on two channels, two DIMMs per channel, filled with 16 GB single-rank or 32 GB dual-rank kits. Four 32 GB modules reach the 128 GB ceiling. RDIMMs, LRDIMMs and non-ECC UDIMMs are all ruled out.

Capacity with every slot filled

by DIMM size
16 GB64 GB32 GB128 GB4 slots · 4 per processor · each tick = one DIMM

Operating speed

per HPE memory tables
Processor1 DIMM / channel2 DIMMs / channel
Xeon 6300, Xeon E or Pentium · 16 GB 1R4400 MT/s4000 MT/s
Xeon 6300, Xeon E or Pentium · 32 GB 2R4400 MT/s3600 MT/s
  • The kit names read DDR5-4800 CAS-40-39-39, but the memory table prints a native 5600 MT/s at CAS 36-36-36 for the same part numbers; in either case the platform runs them at 4400 MT/s at most.
  • Populate slots in the order 3-A, 1-B, 4-C, 2-D. HPE recommends one, two or four DIMMs, and the two DIMMs sharing a channel must be the same capacity.
  • DIMMs from earlier ProLiant generations are neither qualified nor warranted in this server.
  • The pre-configured models ship with a single 16 GB DIMM, and a note in that section caps field upgrades at 64 GB (4 × 16 GB) — half the 128 GB given for the platform.
04 — Storage

4 drive-cage kits, up to 6 bays

Storage is fixed by the configure-to-order chassis you start from — 4 SFF hot-plug, 2 LFF hot-plug or 2 LFF non-hot-plug — plus one kit that takes the SFF model to six bays. HPE sells that kit separately, so the layouts below are the complete configurations the choices produce.

Headline layouts

front panel view

Front panel

The 4SFF chassis with the 2SFF HDD Enablement Kit (P65406-B21). NVMe U.3 drives, two at most, can only be chosen with this kit fitted. One SSD note says 24G SAS drives keep their full speed in the added 2SFF cage; another says every DL20 Gen11 runs them at 12G. HPE’s capacity table reaches 92.16 TB with six 15.36 TB SAS SSDs.

SAS/SATANVMeSAS/SATA + NVMe

Controllers & boot

  • Intel VROC SATA Hybrid RAID (embedded) — Software RAID. Embedded on all models; RAID 0/1/5/10; disabled by default (BIOS default is SATA AHCI); cannot be factory ordered; UEFI boot mode required; no VMware support; cannot span drive form factors or drive cages.
  • HPE Smart Array E208e-p SR Gen10 (8 External Lanes/No Cache) 12G SAS PCIe Plug-in Controller — RAID. Essential RAID controller; to be used for external storage only.
  • HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller — RAID, 4GB cache. Tri-Mode; internal OROC (OCP) slot. Tri-Mode controllers are not supported on the 2LFF NHP model server.
  • HPE MR216i-p Gen11 x16 Lanes without Cache PCI SPDM Plug-in Storage Controller — HBA. Tri-Mode; PCIe plug-in. Tri-Mode controllers are not supported on the 2LFF NHP model server.
  • HPE MR216i-o Gen11 x16 Lanes without Cache OCP SPDM Storage Controller — HBA. Tri-Mode; internal OROC (OCP) slot. Tri-Mode controllers are not supported on the 2LFF NHP model server.
  • HPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device — Boot. Includes 2 x 480GB M.2 NVMe SSDs with preconfigured hardware RAID1; requires cable kit P65410-B21.
  • HPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device (2 x 480GB M.2 NVMe SSD, hardware RAID1) - P48183-B21, requires HPE ProLiant DL20 Gen11 NS204i-u Hot Plug Boot Optimized Storage Device Cable Kit P65410-B21 — boot
  • M.2 2280 NVMe SSDs (480GB P80318-B21 / 960GB P80321-B21 / 960GB SED P80327-B21 / 1.92TB P80324-B21) - require HPE ProLiant DL20 Gen11 LP Serial Port/iLO/M.2 Enablement Kit P65407-B21; M.2s are not supported by HPE Smart Array controllers — boot
  • Intel VROC SATA RAID (RAID 0, 1, 5 and 10) is built into every model but ships disabled — the BIOS defaults to AHCI — and cannot be enabled at the factory; the customer switches it on. It needs UEFI boot, has no VMware support and cannot span drive cages or drive form factors.
  • Tri-Mode options: the MR408i-o (4 GB cache) or MR216i-o in the internal OROC slot, or the MR216i-p in the PCIe slot, each cabled to the drives with one of HPE’s DL20 OCP or PCIe cable kits.
  • The Smart Array E208e-p is listed for external storage only.
  • Boot: the NS204i-u module, which mirrors a pair of 480 GB M.2 NVMe drives in hardware (cable kit P65410-B21), or up to two M.2 2280 NVMe SSDs through the LP Serial Port/iLO/M.2 Enablement Kit. Smart Array controllers do not manage the M.2 drives.
  • HPE’s maximum-storage table quotes M.2 at 8 TB (2 × 4 TB), yet the largest M.2 SSD in the options list is 1.92 TB.
  • HPE suggests a 25 °C ambient for both the M.2 SSDs and the NS204i-u; at 35 °C or more, expect louder fans.
  • When VROC is in use, install HPE Agentless Management in the OS: it passes drive temperatures to the fan control, and HPE warns of extra noise if it is missing.

Every documented drive-cage kit

4 with drive bays
4SFF Hot Plug4SFF Hot Plug4HPE ProLiant DL20 Gen11 2SFF HDD Enablement Kit (+…HPE ProLiant DL20 Gen11 2SFF HDD Enablement Kit (+2 SFF)22LFF Hot Plug2LFF Hot Plug22LFF Non-Hot Plug2LFF Non-Hot Plug2Bays · solid = front · dashed = rear · brighter = NVMe-only
2.5-inch3.5-inchEDSFF (E1.S / E3.S)
05 — Accelerators & I/O

GPUs, PCIe and networking

HPE lists two NVIDIA cards — an RTX A400 with 4 GB and an RTX A1000 with 8 GB — and the DL20 has a single PCIe slot to hold one. Neither entry carries a power, width or quantity figure. Installing either card disables the iLO video port, and HPE’s note says to use the iLO web GUI instead.

NVIDIA RTX A400 4GB PCIe ATX Bracket Accelerator for HPE

4GB

NVIDIA RTX A1000 8GB PCIe Accelerator for HPE

8GB

I/O topology

1 socket
CPUPCIe 5.02 ch · 4 DIMMSlot 1 · PCIe 5.0 x16full height, half length · CPUOCP 3.0 · x4 via PCHnetworking cards onlyInternal OROC · x4 via PCHOCP-format storage controllers

The processor drives a single PCIe 5.0 x16 slot; the two OCP-format sockets are x4 links from the PCH — an external one for a network card and an internal OROC one for a storage controller — and both can be used together.

Network adapters HPE lists

16 options
AdapterPortsForm
Embedded Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter4 × 1GbEembedded
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE2 × 10/25GbEPCIe
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE4 × 10/25GbEPCIe
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE2 × 10/25GbEPCIe
Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE4 × 10/25GbEPCIe
Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 Adapter for HPE2 × 10/25GbEPCIe
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T Adapter for HPE2 × 10GbEPCIe
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ Adapter for HPE2 × 10GbEPCIe
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter for HPE4 × 1GbEPCIe
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE2 × 10/25GbEOCP 3.0
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE2 × 10/25GbEOCP 3.0
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 OCP3 Adapter for HPE4 × 10/25GbEOCP 3.0
Mellanox MCX631432AS-ADAI Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE2 × 10/25GbEOCP 3.0
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T OCP3 Adapter for HPE2 × 10GbEOCP 3.0
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ OCP3 Adapter for HPE2 × 10GbEOCP 3.0
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T OCP3 Adapter for HPE4 × 1GbEOCP 3.0
  • HPE lists the DL320 Gen11 x16 FHHL riser (P52753-B21) as a mandatory selection for this model. Its table gives the kit a second, x8 position, while the DL20 slot table shows only the one x16 slot.
  • At most one PCIe and one OCP network adapter; the OCP card also needs the External OCP Cable Kit (P65411-B21).
  • Adapters run from 1GbE to 10/25GbE (Broadcom, Intel, Mellanox); no 100GbE or InfiniBand option is listed.
  • Networking SR-IOV is not supported.
06 — Power & cooling

7 power supplies, 290–1,000 W

Two supply families: HPE’s standard 290 W non-redundant unit, and hot-plug Flex Slot units of 500 W, 800 W or 1000 W that can be doubled up for 1+1. Mixing is not allowed: a second supply added for redundancy has to be the identical part.

05001000290 W null — HPE DL20 Gen11 290W ATX FIO PS Kit; factory-integrated only, cannot be ordered standalone. Requires ATX enablement kit (P65409-B21 is itself listed as the ATX FIO PSU kit; Standard Features also cites P65409-B21 as the 'ATX PSU FIO Enable Kit' required when using ATX power supplies).290DC290 W Platinum — HPE DL20 Gen10 Plat 290W FIO Power Supply Kit; power efficiency at 92% single output. Listed in Standard Features only, not in Step 2c.290Platinum290 W Platinum — HPE ProLiant DL20 Gen10 Plus 290W FIO Power Supply Kit; 94% efficiency, multi-output; meets EU Lot 9.290Platinum500 W Platinum — HPE 500W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit; power efficiency at 94% single output.500Platinum800 W Platinum — HPE 800W Flex Slot -48VDC Platinum Hot Plug Low Halogen Power Supply Kit; supports power efficiency of up to 94% and 96%. Listed in Standard Features only, not in Step 2c.800Platinum800 W Titanium — HPE 800W Flex Slot Titanium Hot Plug Low Halogen Power Supply Kit; power efficiency at 96% single output; meets EU Lot 9.800Titanium1000 W Titanium — HPE 1000W Flex Slot Titanium Hot Plug Power Supply Kit; power efficiency at 96% single output; meets EU Lot 9.1000TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
  • 290 W: 100–120 or 200–240 V AC, 5.5 A maximum and 550 W input at 100 V AC, 1130 BTU/hr at 115 V; it may peak at 366 W for up to 10 seconds.
  • P65409-B21 is named two ways — the DL20 Gen11 290 W ATX FIO power supply kit in the ordering step, an ATX PSU enablement kit in the standard features — and either way it is sold only factory-integrated, never as a later standalone option.
  • EU Lot 9, which applies to UK sales from 1 January 2024: HPE names the 290 W Platinum, 800 W and 1000 W supplies as compliant. The 500 W Flex Slot unit is rated 94 % single-output against the 96 % single-output requirement and is on neither of HPE’s lists.
  • Maximum heat output: 3753 BTU/hr for the 1000 W unit at 100 V AC, 3071 BTU/hr for the 800 W at 200 V AC and 1979 BTU/hr for the 500 W at 100 V AC.
  • An 800 W −48 V DC Flex Slot supply (865434-B21) is named in the standard features but not in the ordering step for supplies.
07 — Management, security & OS

Run it, secure it, choose the OS

Management

  • HPE iLO 6 (on-board ASIC, 32 MB flash, 8 Gbit DDR4)
  • iLO shares embedded NIC port 1 by default; dedicated 1 Gb port via enablement kit
  • iLO Advanced and iLO Advanced Premium Security Edition (optional)
  • HPE Compute Ops Management — 3-year subscription added by default
  • Intelligent Provisioning · Active Health System · Smart Update / SPP
  • iLO RESTful API (Redfish) · iLOREST · Scripting Tools
  • HPE OneView Standard; OneView Advanced optional
  • iLO Amplifier Pack · iLO Mobile app

Security

  • Immutable Silicon Root of Trust
  • UEFI Secure Boot and Secure Start
  • TPM 2.0 embedded and enabled (disabled for shipments to China)
  • FIPS 140-2 validation · Common Criteria certification
  • CNSA algorithms · iLO security modes
  • Signed firmware, secure recovery and firmware rollback
  • Smart card (PIV/CAC) and Kerberos two-factor login
  • Bezel lock kit · chassis intrusion detection option

Operating systems

  • Supported OS list: HPE Servers Support & Certification Matrices
  • Intel VROC SATA RAID: Windows Server and Linux only, no VMware
  • VROC drivers come from support.hpe.com, not the SPP
08 — Compare

How the DL20 Gen11 compares with its family

The DL20 Gen11 beside HPE’s ML30, ML110 and MicroServer Gen11 towers and the DL320 and DL325 Gen11 1U servers. The matrix compares the limits recorded in each model’s spec file.

DL20 Gen11ML30 Gen11MicroServer Gen11ML110 Gen11DL320 Gen11DL325 Gen11Cores / CPUDL20 Gen11: 1212ML30 Gen11: 1212MicroServer Gen11: 1212ML110 Gen11: 3232DL320 Gen11: 6464DL325 Gen11: 160160DIMM slotsDL20 Gen11: 44ML30 Gen11: 44MicroServer Gen11: 44ML110 Gen11: 1616DL320 Gen11: 1616DL325 Gen11: 1212Max memoryDL20 Gen11: 0.125 TB0.125ML30 Gen11: 0.125 TB0.125MicroServer Gen11: 0.125 TB0.125ML110 Gen11: 1.5 TB1.5DL320 Gen11: 2.04 TB2.04DL325 Gen11: 3 TB3Max drive baysDL20 Gen11: 66ML30 Gen11: 88MicroServer Gen11: 44ML110 Gen11: 1616DL320 Gen11: 1212DL325 Gen11: 2020Max GPUsDL20 Gen11: 00ML30 Gen11: 00MicroServer Gen11: 11ML110 Gen11: 22DL320 Gen11: 44DL325 Gen11: 44Largest PSUDL20 Gen11: 1,000 W1,000ML30 Gen11: 1,000 W1,000MicroServer Gen11: 330 W330ML110 Gen11: 1,600 W1,600DL320 Gen11: 2,200 W2,200DL325 Gen11: 2,200 W2,200
This modelSiblings and successorEach value from that model’s own verified spec file · bars scale per column
ML30 Gen11 data sheetMicroServer Gen11 data sheetML110 Gen11 data sheetDL320 Gen11 data sheetDL325 Gen11 data sheetDL20 Gen11 vs Dell R260DL20 Gen11 vs Dell R360DL20 Gen11 vs R260 vs Lenovo SR250 V3Dell PowerEdge R260 data sheetDell PowerEdge R360 data sheetLenovo SR250 V3 data sheet
09 — Use cases

Four builds that suit the DL20 Gen11

Four small-site builds, each assembled only from parts our configurator accepts on the DL20 Gen11. Each link opens the configurator pre-filled with two power supplies and one of each drive cage named, ready to adjust.

Branch office

Mirrored two-disk file server

Shared folders, print queues and a local directory controller need little processor. A four-core Xeon 6325P, two DIMMs and a mirrored pair of 4 TB SATA disks in the 2LFF hot-plug chassis cover them, with the embedded VROC SATA RAID doing the mirroring instead of a controller card.

  • 1 × Xeon 6325P — 4 cores @ 3.5 GHz, 55 W
  • 2 × 16 GB DDR5 ECC UDIMM — 32 GB, one per channel
  • 2 × 4 TB 3.5-inch SATA HDD in the 2LFF hot-plug chassis — mirrored
  • Intel VROC SATA RAID 1 (enabled in BIOS on site)
  • Embedded 4 × 1GbE BCM5719
  • 2 × 500 W Flex Slot Platinum supplies — 1+1 redundant
  • Windows Server 2025 Standard
  • HPE Tech Care Basic

VROC SATA RAID cannot be set up at the factory: it ships disabled, needs UEFI boot and relies on HPE Agentless Management for drive temperatures. For the lowest-cost version, replace the two 500 W units with a single 290 W supply and accept no power redundancy.

Open this build in the configurator →
Small virtualisation

Six-bay twelve-core host

The 12-core Xeon 6377P with all four slots at 32 GB gives a small virtualisation host 128 GB. Four SAS SSDs fill the base cage, the 2SFF kit adds two NVMe U.3 drives for a fast tier, the NS204i-u keeps the hypervisor off the data drives, and a 25GbE OCP card leaves the PCIe slot free.

  • 1 × Xeon 6377P — 12 cores @ 3.1 GHz, 95 W
  • 4 × 32 GB DDR5 ECC UDIMM — 128 GB, every slot used
  • 4 × 1.92 TB SAS SSD + 2 × 3.84 TB NVMe U.3 (2SFF HDD Enablement Kit)
  • MR216i-o Tri-Mode controller in the internal OROC slot
  • NS204i-u boot device with DL20 cable kit
  • Broadcom BCM57414 2 × 10/25Gb SFP28 OCP 3.0 adapter
  • 2 × 800 W Titanium Flex Slot supplies — 1+1
  • Windows Server 2025 Datacenter
  • HPE Tech Care Essential

HPE caps NVMe at two drives and restricts them to a 25 °C ambient. Two DIMMs per channel cut memory to 3600 MT/s. Cabling the 2SFF bays to an OROC controller needs HPE’s 2SFF OCP cable kit.

Open this build in the configurator →
Backup & archive

Backup head for external SAS storage

An E208e-p in the PCIe slot provides eight external 12G SAS lanes for external storage, two 8 TB SAS disks on a cached MR408i-o hold the catalogue and recent restore points, and a 10GBASE-T OCP card carries the backup traffic.

  • 1 × Xeon 6333P — 6 cores @ 3.1 GHz, 65 W
  • 2 × 32 GB DDR5 ECC UDIMM — 64 GB
  • 2 × 8 TB 3.5-inch SAS HDD in the 2LFF hot-plug chassis — RAID 1
  • MR408i-o (4 GB cache) in the internal OROC slot
  • Smart Array E208e-p external SAS controller in the PCIe slot
  • Broadcom BCM57416 2 × 10GBASE-T OCP 3.0 adapter
  • 2 × 800 W Titanium Flex Slot supplies — 1+1
  • Windows Server 2025 Standard
  • HPE Tech Care Essential

This needs the 2LFF hot-plug chassis: Tri-Mode controllers are not supported on the non-hot-plug model. With the E208e-p in the only PCIe slot, any added network adapter has to be an OCP card.

Open this build in the configurator →
Graphics at the branch

Server with an RTX A1000

Where a small site needs a graphics card in the server itself, the RTX A1000 takes the PCIe slot while a 25GbE OCP card and two mirrored SATA SSDs complete the build.

  • 1 × Xeon 6357P — 8 cores @ 3 GHz, 80 W
  • 4 × 16 GB DDR5 ECC UDIMM — 64 GB
  • 2 × 960 GB SATA SSD in the 4SFF cage — VROC RAID 1
  • NVIDIA RTX A1000 8 GB in the PCIe 5.0 slot
  • Intel E810-XXVDA2 2 × 10/25Gb SFP28 OCP 3.0 adapter
  • 2 × 800 W Titanium Flex Slot supplies — 1+1
  • Windows Server 2025 Standard
  • HPE Tech Care Essential

Fitting the RTX A1000 turns off the iLO video output; HPE’s note points to the iLO web GUI instead. HPE lists no power figure for the card; check the build in HPE Power Advisor. With four 16 GB DIMMs, memory runs at 4000 MT/s.

Open this build in the configurator →
10 — Refurbished alternatives

When a refurbished ProLiant makes more sense

Our refurbished HPE range starts at Gen10 and includes no single-socket Xeon E model, so the nearest substitutes are larger 1U servers that step back to DDR4 in exchange for many more memory slots and drive bays.

Gen10 · re-certified

HPE ProLiant DL360 Gen10

  • 1U rack · two Xeon Scalable sockets
  • 24 DIMM slots · up to 3 TB DDR4
  • Up to 10 SFF / NVMe bays
  • iLO 5

When a branch has outgrown 128 GB and six bays, a second processor would help and DDR4 is acceptable.

Configure a refurbished DL360 Gen10 →
Gen10 Plus · re-certified

HPE ProLiant DL325 Gen10 Plus

  • 1U rack · one AMD EPYC 7002/7003
  • Up to 64 cores · 128 PCIe 4.0 lanes
  • 16 DIMM slots · up to 4 TB DDR4
  • iLO 5

Keeps a one-socket footprint but moves to AMD: up to 64 cores and 4 TB of DDR4, against 12 cores and 128 GB for the largest DL20 build.

Configure a refurbished DL325 Gen10 Plus →
Refurbished HPE ProLiant serversRefurbished ProLiant configuratorNew vs refurbished cost calculator
11 — Full specifications

HPE ProLiant DL20 Gen11 specifications

Chassis & cooling

Form factor1U rack, one processor
CTO chassis4 SFF hot-plug (P65392-B21) · 2 LFF hot-plug (P65391-B21) · 2 LFF non-hot-plug (P65390-B21)
Dimensions (H × W × D)4.32 × 43.46 × 37.84 cm (SFF) · 4.32 × 43.46 × 38.22 cm (LFF)
Weight9–12 kg for a loaded system, any chassis
FansThree performance single-rotor fans · non-hot-plug · non-redundant
RailsHPE Easy Install Rail 12 Kit (P64576-B21)

Processor

SocketOne · Intel C262 chipset
OrderableXeon 6300 (9 kits, 4–12 cores, 55–95 W) · Pentium G7400 (2 cores, 46 W)
Listed, kits removedXeon E-2400 (8 models, 4–8 cores, 55–95 W)
Memory speed4400 MT/s on every listed processor

Memory

Slots4 × DDR5 ECC UDIMM · 2 channels · 2 DIMMs per channel
Kits16 GB single-rank · 32 GB dual-rank
Speed4400 MT/s at 1 DPC · 4000 (16 GB) or 3600 (32 GB) MT/s at 2 DPC
Maximum128 GB (4 × 32 GB)

Storage

Bays4 or 6 × SFF hot-plug, or 2 × LFF (hot-plug or non-hot-plug)
NVMeUp to 2 × U.3, only with the 2SFF kit
ControllersIntel VROC SATA (embedded) · MR408i-o · MR216i-o · MR216i-p · E208e-p (external)
BootNS204i-u (2 × 480 GB, RAID 1) · or M.2 2280 NVMe via enablement kit
Maximum capacitySFF: 92.16 TB (6 × 15.36 TB SAS SSD) · LFF hot-plug: 40 TB · LFF non-hot-plug: 8 TB
OpticalDVD-ROM or DVD-RW option on 4SFF and 2LFF (not with the 2SFF kit)

Expansion & networking

PCIeSlot 1: PCIe 5.0 x16, full height, half length, from the CPU
OCPExternal OCP 3.0 x4 (networking) · internal OROC x4 (storage) — both from the PCH
Embedded NIC4 × 1GbE Broadcom BCM5719 · port 1 shared with iLO
GPUNVIDIA RTX A400 4 GB or RTX A1000 8 GB

Power

Supplies290 W non-redundant · Flex Slot 500 W Platinum, 800 W Titanium, 1000 W Titanium (1+1)
290 W input100–120 / 200–240 V AC · 5.5 A max at 100 V AC
RuleTwo supplies must share one part number

Ports & video

Front1 × USB 3.2 Gen1 · 1 × USB 2.0 iLO service port
Rear4 × USB 3.2 Gen1 · VGA · DisplayPort · 4 × 1GbE · optional serial · optional iLO port
Internal2 × USB 3.2 Gen2
VideoMatrox G200, 16 MB · up to 1920 × 1200 at 85 Hz (16 bpp)

Environment & acoustics

Standard inlet10–35 °C at sea level, derated 1 °C per 305 m up to 3050 m
Extended inlet5–10 °C and 35–40 °C, or 40–45 °C, on HPE-approved configurations
Humidity8–90 % operating, non-condensing
Acoustics27–28 dBA bystander · 3.9 B sound power · idle and operating

Warranty & service

Warranty3 years parts, 3 years labour, 3 years on-site next business day · 90 days software support
HPE Tech CareBasic (3-year) or Essential (3- or 5-year), each with a defective-media-retention variant
12 — FAQ

DL20 Gen11 questions, answered from the documentation

What is the maximum memory of the HPE ProLiant DL20 Gen11?

It tops out at 128 GB — four 32 GB DDR5 ECC UDIMMs. HPE offers just two unbuffered kits, 16 GB and 32 GB. A lone DIMM in a channel runs at 4400 MT/s; filling both slots of a channel drops that to 4000 MT/s (16 GB) or 3600 MT/s (32 GB).

Which processors can I order for the DL20 Gen11?

Nine Intel Xeon 6300 processors — 4 to 12 cores, 55 to 95 W — or the two-core Pentium G7400, in the single socket. Eight Xeon E-2400 models remain in HPE’s feature table, but the Summary of Changes records their option kits being removed as obsolete in Versions 26 and 28.

How many drives does the DL20 Gen11 hold?

Four hot-plug SFF bays on the SFF chassis, six with HPE’s 2SFF kit, or two LFF bays in hot-plug or non-hot-plug form. At most two of the drives can be NVMe U.3, and only when the 2SFF kit is fitted.

Does the DL20 Gen11 support redundant power supplies?

Yes, with Flex Slot supplies: two identical 500 W, 800 W or 1000 W units give 1+1 hot-plug redundancy. The 290 W entry supply is non-redundant, and HPE does not allow two different supplies in one server.

Can the DL20 Gen11 take a GPU?

Two NVIDIA cards are listed for it — the RTX A400 with 4 GB of memory and the RTX A1000 with 8 GB — and its single PCIe slot takes one of them. Fitting either card switches off the iLO video output, and HPE tells users to work through the iLO web GUI instead.

What expansion slots does the DL20 Gen11 have?

One PCIe 5.0 x16 full-height, half-length slot wired to the processor, an OCP 3.0 x4 slot for networking and an internal OROC x4 slot for a storage controller. HPE allows one PCIe and one OCP network adapter at most.

How big and heavy is the DL20 Gen11?

It is 1U, 4.32 cm high and 43.46 cm wide, and 37.84 cm deep with SFF drives or 38.22 cm with LFF drives. HPE gives 9 to 12 kg for a loaded system of any chassis type.

Can I run VMware on the DL20 Gen11’s built-in RAID?

Not on VROC: HPE limits the embedded SATA RAID to Windows Server and Linux, with no VMware support. Other storage options HPE lists include the MR408i-o, MR216i-o and MR216i-p Tri-Mode controllers and the NS204i-u boot device; check the hypervisor against HPE’s certification matrices.

Is the DL20 Gen11 quiet enough for an office?

HPE declares 27–28 dBA at the bystander position and 3.9 B sound power for its four test configurations, idle and operating. Additional options can raise those levels, and HPE warns of louder fans when NVMe drives run above a 25 °C ambient or M.2 drives at 35 °C or more.

Is the HPE ProLiant DL20 Gen11 end of life?

HPE’s QuickSpecs (Version 28, 8 September 2026) carry no end-of-sale or end-of-support date for the server; what has been removed are individual option kits, such as the Xeon E-2400 processors. If HPE sets a date later, our server end-of-life checker will list it.

Sources & verification

Where these figures come from

  • HPE ProLiant DL20 Gen11 QuickSpecs (Version 28 - 08-Sep-2026) — Overview; Standard Features (processors, memory, network, expansion slots, storage controllers, maximum storage, power supplies, interfaces, graphics, security, warranty); pre-configured models; Configuration steps 1–2c; Core and Additional Options; Memory population; Technical Specifications (dimensions, weight, power, environment, acoustics); Summary of Changes. Images: HPE product renders identical to the QuickSpecs 4SFF front, rear and internal view figures, whose callouts label the hotspots.

Specifications are extracted from HPE’s published documents and independently re-checked line by line. Configurations are quote-based; availability and exact options are confirmed at quotation. Last reviewed 2026-09-11.

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