Technical data sheet · ProLiant Compute Gen12 · 1U single-socket

HPE ProLiant Compute DL320 Gen12Specifications, configurations & comparisons

The ProLiant Compute DL320 Gen12 is HPE’s single-socket 1U for Intel Xeon 6, rebuilt on the DC-MHS modular design with iLO 7 on a DC-SCM module and M-CRPS power supplies. It comes as five chassis — SFF, SFF/EDSFF, 4 LFF, 12 LFF and GPU — and this page maps the processors, DDR5-6400 memory, drive cages, networking and power each one allows.

1U Rack1 socketXeon 6 E-coreXeon 6 P-coreHPE iLO 7

144cores per CPUXeon 6 E-core · 6766E and 6780E

4TBDDR5 maximum16 × 256 GB · 5200 MT/s at 2 DPC

20EDSFF baysE3.S 1T · SFF/EDSFF chassis

4single-wide GPUsGPU chassis · or 2 double-wide

4OCP 3.0 slots2 rear · 2 front on SFF/EDSFF

2,400Wlargest PSUM-CRPS Titanium · 1200 W at low line

Configure a DL320 Gen12 →Get a UK quote Refurbished alternatives ↓

Every figure checked against the HPE ProLiant Compute DL320 Gen12 QuickSpecs (Version 20 - 08-Sep-2026)

Image: Hewlett Packard Enterprise

Form factor: 1U Rack · 1 socket
Processors: Xeon 6 E-core · Xeon 6 P-core
Memory: 16 × DDR5 RDIMM · up to 4 TB
Drive bays: Up to 20 · 9 drive-cage kits
Expansion: 2 × PCIe · 2 × OCP 3.0
GPUs: Up to 4 · 2 listed
Boot: NS204i · 6 boot options
Management: HPE iLO 7

01 — Overview

The DL320 Gen12 at a glance

Our read of HPE’s documentation: where the DL320 Gen12 is strong, and the limits worth knowing before you spec one.

Strengths

Xeon 6 in a single socket: E-core parts up to 144 cores or P-core parts up to 86, including six Rich I/O processors HPE groups as single-socket parts.
Every listed module is DDR5-6400, for 4 TB across 16 slots; HPE gives 6400 MT/s at one DIMM per channel and 5200 MT/s with all sixteen fitted, with the processor setting the final limit.
Up to 20 E3.S 1T drives in the SFF/EDSFF chassis — 307.2 TB raw in HPE’s table — or twelve 3.5-inch bays when raw disk capacity matters more than flash.
Flexible networking: OCP slots A and B at the rear, plus two front OCP 3.0 slots listed for the SFF/EDSFF chassis, all PCIe 5.0 x16; the NS204i-u boot device can sit at the front, rear or inside.
DC-MHS construction puts iLO 7 on a DC-SCM module with its own 1 GbE port, and power moves to M-CRPS supplies of up to 2400 W.

Watch-outs

There are no network ports on the board, so every build needs an OCP 3.0 card or a PCIe adapter.
Processors above 270 W need the closed-loop liquid-cooling heat sink and fans, and Direct Liquid Cooling builds leave HPE only as a complete rack.
The GPU chassis needs a Rich I/O processor for enough PCIe lanes, and HPE lists just two GPUs for it: the NVIDIA L4 and L40S.
Memory counts are limited to 1, 2, 4, 6, 8 or 16 DIMMs, and 96 GB and larger DIMMs, like any 25 Gb or faster Ethernet card, need high-performance fans.
The 12 LFF chassis is 99.74 cm deep and needs a 1200 mm rack, and the GPU chassis is 82.18 cm deep.

Processors32 SKUs

Cores / CPU8–144

DIMM slots16

Drive-cage kits9

Max bays20

GPUsup to 4

PSU options6 · to 2,400 W

02 — Processors

32 supported processors, mapped

HPE lists 32 Xeon 6 option kits for the DL320 Gen12 in four groups — E-core performance-per-watt parts from 64 to 144 cores, P-core parts, Mainline parts and single-socket Rich I/O parts — charted below by cores against TDP. TDP runs from 135 W to 350 W, and the cooling kit steps up at 185 W and again at 270 W.

Processor landscape — cores × TDP

32 SKUs · 2 families

Xeon 6 E-core 7Xeon 6 P-core 25Bubble size = L3 cache · hover a bubble for the full SKU

Processor explorer

filter · sort · compare

Sort

Processor	Cores / threads	Base	L3 cache	TDP	W / core	Memory
Intel Xeon 6780E	144	2.2 GHz	108 MB	330 W	2.3	DDR5-6400
Intel Xeon 6766E	144	1.9 GHz	108 MB	250 W	1.7	DDR5-6400
Intel Xeon 6756E	128	1.8 GHz	96 MB	225 W	1.8	DDR5-6400
Intel Xeon 6746E	112	2 GHz	96 MB	250 W	2.2	DDR5-5600
Intel Xeon 6731E	96	2.2 GHz	96 MB	250 W	2.6	DDR5-5600
Intel Xeon 6740E	96	2.4 GHz	96 MB	250 W	2.6	DDR5-6400
Intel Xeon 6787P	86	2 GHz	336 MB	350 W	4.1	DDR5-6400
Intel Xeon 6781P	80	2 GHz	336 MB	350 W	4.4	DDR5-6400
Intel Xeon 6710E	64	2.4 GHz	96 MB	205 W	3.2	DDR5-5600
Intel Xeon 6767P	64	2.4 GHz	336 MB	350 W	5.5	DDR5-6400
Intel Xeon 6761P	64	2.5 GHz	336 MB	350 W	5.5	DDR5-6400
Intel Xeon 6760P	64	2.2 GHz	320 MB	330 W	5.2	DDR5-6400
Intel Xeon 6747P	48	2.7 GHz	288 MB	330 W	6.9	DDR5-6400
Intel Xeon 6741P	48	2.5 GHz	288 MB	300 W	6.3	DDR5-6400
Intel Xeon 6740P	48	2.1 GHz	288 MB	270 W	5.6	DDR5-6400
Intel Xeon 6736P	36	2 GHz	144 MB	205 W	5.7	DDR5-6400
Intel Xeon 6732P	32	3.8 GHz	—	350 W	10.9	—
Intel Xeon 6745P	32	3.1 GHz	336 MB	300 W	9.4	DDR5-6400
Intel Xeon 6737P	32	2.9 GHz	144 MB	270 W	8.4	DDR5-6400
Intel Xeon 6730P	32	2.5 GHz	288 MB	250 W	7.8	DDR5-6400
Intel Xeon 6731P	32	2.5 GHz	144 MB	245 W	7.7	DDR5-6400
Intel Xeon 6530P	32	2.3 GHz	144 MB	225 W	7.0	DDR5-6400
Intel Xeon 6527P	24	3 GHz	144 MB	255 W	10.6	DDR5-6400
Intel Xeon 6521P	24	2.6 GHz	144 MB	225 W	9.4	DDR5-6400
Intel Xeon 6520P	24	2.4 GHz	144 MB	210 W	8.8	DDR5-6400
Intel Xeon 6725P	16	3.7 GHz	192 MB	235 W	14.7	DDR5-6400
Intel Xeon 6517P	16	3.2 GHz	72 MB	190 W	11.9	DDR5-6400
Intel Xeon 6515P	16	2.3 GHz	72 MB	150 W	9.4	DDR5-6400
Intel Xeon 6511P	16	2.3 GHz	72 MB	150 W	9.4	DDR5-6400
Intel Xeon 6505P	12	2.2 GHz	48 MB	150 W	12.5	DDR5-6400
Intel Xeon 6507P	8	3.5 GHz	48 MB	150 W	18.8	DDR5-6400
Intel Xeon 6503P	8	2.8 GHz	48 MB	135 W	16.9	DDR5-6400

Above 185 W TDP the build needs the High Performance Heatsink (P71956-B21) and seven High-Performance Fan Kits; above 270 W, HPE’s closed-loop liquid-cooling heat sink (P76605-B21) with seven closed-loop fan kits.
Most parts are listed with a 6400 MT/s memory ceiling; the 6710E, 6731E and 6746E E-core processors are listed at 5600 MT/s.
The GPU chassis requires one of the Rich I/O processors — 6511P, 6521P, 6731P, 6741P, 6761P or 6781P — so that the PCIe slots and drive cages get enough lanes.
The eight-core 6503P was added in Version 20 of the QuickSpecs (8 September 2026).

03 — Memory

16 DDR5 DIMM slots

Sixteen DDR5 RDIMM slots on eight channels with two DIMMs per channel, filled from six module sizes: 16, 32, 64, 96 and 128 GB RDIMMs and a 256 GB 3DS RDIMM, all rated DDR5-6400. According to HPE, the 4 TB ceiling holds for all of the listed processors.

Capacity with every slot filled

by DIMM size

Operating speed

per HPE memory tables

Processor	1 DIMM / channel	2 DIMMs / channel
Xeon 6 E-core and P-core	6400 MT/s	5200 MT/s

4 TB is 16 × 256 GB — two DIMMs on every channel — so it runs at 5200 MT/s; the biggest one-per-channel build is eight 256 GB modules for 2 TB, at up to 6400 MT/s on processors rated for it.
Twelve DIMMs is not an allowed count: HPE sells memory for this server only in totals of one, two, four, six, eight or sixteen modules.
Memory protection is Advanced ECC plus ADDDC, which HPE enables by default and notes can cost some performance under certain workloads.
In the GPU chassis some memory configurations are restricted depending on the inlet temperature.

04 — Storage

9 drive-cage kits, up to 20 bays

Five CTO chassis set the drive options: SFF (8 bays, or 10 with the 8+2 cage), SFF/EDSFF (10 SFF or 20 EDSFF), 4 LFF, 12 LFF, and the GPU chassis, which takes 4EDSFF or 2SFF stacking cages alongside its GPUs. No drives ship as standard.

Headline layouts

front panel view

Front panel

SFF/EDSFF CTO server (P75217-B21) built from 4-bay EDSFF stacking backplanes: 307.2 TB raw in HPE’s table with 15.36 TB drives.

SAS/SATANVMeSAS/SATA + NVMe

Controllers & boot

HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device — Boot. 2x 480GB M.2 NVMe SSDs with preconfigured hardware RAID1; front hot-plug, rear hot-plug or internal (non-hot-plug) location options; does not occupy a PCIe slot. P77555-B21 riser required for rear hot-plug NS204i with the P67252-B21 2400W 73.5mm PSU.
Intel Virtual RAID on CPU RAID 1 FIO Software for HPE — Software RAID. Intel VROC RAID 1 licence; up to 8 NVMe direct-attach drives; SATA drives not supported; VROC disabled by default, requires licensing
Intel Virtual RAID on CPU Premium FIO Software for HPE — Software RAID. Intel VROC Premium licence; RAID 0/1/5/10 depending on licensing; up to 8 NVMe direct-attach drives; SATA not supported
HPE MR216i-p Gen11 x16 Lanes without Cache PCI SPDM Plug-in Storage Controller — RAID. Essential RAID; PCIe plug-in; SAS/SATA/NVMe
HPE MR216i-o Gen11 x16 Lanes without Cache OCP SPDM Storage Controller — RAID. Essential RAID; OCP form factor; SAS/SATA/NVMe
HPE MR932i-p x32 Lanes PCIe Gen5 SPDM Plug-in Storage Controller — RAID. Listed under Essential RAID Controllers in Core Options (not in the Standard Features controller list); cache not printed; MR932i-p cable kits exist for 8SFF, 8/12/16/20EDSFF. Added in Version 13.
HPE MR408i-o Gen11 x8 Lanes 4GB Cache OCP SPDM Storage Controller — RAID, 4GB cache. Performance RAID; OCP; requires Li-ion battery (P01366-B21) or Smart Hybrid Capacitor (P02377-B21)
HPE MR416i-o Gen11 x16 Lanes 8GB Cache OCP SPDM Storage Controller — RAID, 8GB cache. Performance RAID; OCP; requires battery or hybrid capacitor
HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device (P78279-B21) — boot
HPE ProLiant Compute DL320 Gen12 NS204i-u Internal Cable Kit (P76627-B21) — boot
HPE ProLiant Compute DL320 Gen12 NS204i-u GPU Internal Cable Kit (P76628-B21) — boot
HPE ProLiant Compute DL320 Gen12 NS204i-u Front Cable Kit (P77186-B21) — boot

All 10 controllers and 6 boot options

HPE MR416i-p Gen11 x16 Lanes 8GB Cache PCI SPDM Plug-in Storage Controller — RAID, 8GB cache. Performance RAID; PCIe plug-in; requires battery or hybrid capacitor
HPE Smart Array E208e-p SR Gen10 (8 External Lanes/No Cache) 12G SAS PCIe Plug-in Controller — RAID. External 12G SAS PCIe plug-in controller (8 external lanes, no cache); listed under a separate 'Storage Controller' heading in Core Options
HPE ProLiant Compute DL3XX Gen12 NS204i-u Rear Cable Kit (P71433-B21) — boot
HPE ProLiant Compute DL320 Gen12 x16 Low Profile NS204i-t Boot Controller Riser Kit (P77555-B21) — boot

HPE’s maximum-storage row for the 4 LFF chassis is printed as “288 TB (4x24 TB)”. Four 24 TB drives make 96 TB; 288 TB is the total HPE gives for twelve such drives in the 12 LFF row.
Controllers: MR216i-p and MR216i-o (Essential RAID), MR408i-o, MR416i-o and MR416i-p (Performance RAID), plus the MR932i-p x32 Gen5 card and the external E208e-p. The MR family handles SAS, SATA and NVMe, and SATA SFF drives need a suitable controller.
Intel VROC NVMe RAID (off by default, licence required) covers up to eight direct-attach NVMe bays, and HPE ties direct-attach NVMe support to PCIe lane availability.
The NS204i-u v2 — two 480 GB NVMe drives in hardware RAID 1 — can be fitted front hot-plug, rear hot-plug or internally without using a PCIe slot; with the 2400 W supply, rear hot-plug needs riser P77555-B21.

Every documented drive-cage kit

9 with drive bays

2.5-inch3.5-inchEDSFF (E1.S / E3.S)

05 — Accelerators & I/O

GPUs, PCIe and networking

GPUs belong to the GPU chassis (P75220-B21), whose front cage takes two double-wide or four single-wide cards. HPE lists the NVIDIA L4 24 GB and the L40S 48 GB; both need performance fans, the L40S needs its own front power cable kit, and the chassis needs a Rich I/O processor. Up to 2 × double-wide or 4 × single-wide GPUs in the GPU chassis’s front cage; HPE advises slots 4 and 6 for one or two single-wide cards and slots 5 and 6 for one double-wide card.

NVIDIA L4 24GB PCIe Accelerator for HPE

24GB

NVIDIA L40S 48GB PCIe Accelerator

48GB

I/O topology

1 socket

The Xeon 6 socket drives two x16 PCIe 5.0 full-height, half-length riser slots and up to four OCP 3.0 slots — A and B at the rear, two more at the front — each PCIe 5.0 x16. Nothing is networked on the board itself; iLO 7 has its own 1 GbE port on the DC-SCM module.

Network adapters HPE lists

30 options

Adapter	Ports	Form
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter for HPE	4 × 1GbE	PCIe
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T Adapter for HPE	2 × 10GbE	PCIe
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ Adapter for HPE	2 × 10GbE	PCIe
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE	2 × 10/25GbE	PCIe
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE	4 × 10/25GbE	PCIe
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE	2 × 10/25GbE	PCIe
Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE	4 × 10/25GbE	PCIe
NVIDIA Ethernet 10/25Gb 2-port SFP28 NVMe-oF Crypto Adapter for HPE	2 × 10/25GbE	PCIe
AMD Solarflare X4522-PLUS 10/25GbE 2-port SFP56 Adapter for HPE	2 × 10/25GbE	PCIe
Mellanox MCX623106AS-CDAT Ethernet 100Gb 2-port QSFP56 Adapter for HPE	2 × 100GbE	PCIe
Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE	2 × 100GbE	PCIe
HPE Slingshot SA210S Ethernet 200Gb 1-port PCIe NIC	1 × 200GbE	PCIe
NVIDIA Ethernet 100Gb 2-port NVMe-oF Offload Adapter for HPE	2 × 100GbE	PCIe
HPE InfiniBand NDR/Ethernet 400Gb 1-port OSFP PCIe5 x16 MCX75310AAS-NEAT Generic Adapter	1 × 400Gb InfiniBand NDR / Ethernet	PCIe
HPE InfiniBand NDR200/Ethernet 200Gb 1-port OSFP PCIe5 x16 MCX75310AAS-HEAT Generic Adapter	1 × 200Gb InfiniBand NDR200 / Ethernet	PCIe
Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T OCP3 Adapter for HPE	4 × 1GbE	OCP 3.0
Broadcom BCM57416 Ethernet 10Gb 2-port BASE-T OCP3 Adapter for HPE	2 × 10GbE	OCP 3.0
Broadcom BCM57412 Ethernet 10Gb 2-port SFP+ OCP3 Adapter for HPE	2 × 10GbE	OCP 3.0
Broadcom BCM57504 Ethernet 10/25Gb 4-port SFP28 OCP3 Adapter for HPE	4 × 10/25GbE	OCP 3.0
Broadcom BCM57414 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE	2 × 10/25GbE	OCP 3.0
Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE	2 × 10/25GbE	OCP 3.0
Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 OCP3 Adapter for HPE	4 × 10/25GbE	OCP 3.0
Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 OCP3 Adapter for HPE	2 × 100GbE	OCP 3.0
Broadcom BCM57608 Ethernet 100Gb 2-port QSFP112 OCP3 Adapter for HPE	2 × 100GbE	OCP 3.0
HPE SN1610Q 32Gb 1-port Fibre Channel Host Bus Adapter	1 × 32Gb Fibre Channel	PCIe
HPE SN1610Q 32Gb 2-port Fibre Channel Host Bus Adapter	2 × 32Gb Fibre Channel	PCIe
HPE SN1700Q 64Gb 1-port Fibre Channel Host Bus Adapter	1 × 64Gb Fibre Channel	PCIe
HPE SN1700Q 64Gb 2-port Fibre Channel Host Bus Adapter	2 × 64Gb Fibre Channel	PCIe
HPE SN1620E 32Gb 2p FC SecureHBA	2 × 32Gb Fibre Channel	PCIe
HPE SN1720E 64Gb 2p FC SecureHBA	2 × 64Gb Fibre Channel	PCIe

The SFF/EDSFF chassis offers either the two front OCP 3.0 slots or a hot-plug M.2 boot device at the front; front OCP uses the Primary (P77261-B21) and Secondary (P76982-B21) enablement kits.
Any 25 Gb or faster Ethernet adapter requires the high-performance fan selection.
With GPUs fitted HPE advises putting the network adapter in slot 1 or 2, or in OCP slot A or B, depending on how many GPUs are installed.

06 — Power & cooling

6 power supplies, 800–2,400 W

Up to two M-CRPS hot-plug supplies, shipped without power cords and never mixed: 1000, 1500 and 2400 W Titanium in the standard list, and in Core Options an 800 W unit plus 1300 W and 2200 W supplies for −48 V DC feeds. Both of HPE’s lists say every M-CRPS supply is rated for 96% efficiency, yet the 800 W unit, listed under an “M-CRPS Titanium” heading, is named Platinum.

AC−48 V DC

Low-line output drops: the 2400 W unit gives 1200 W at 100–127 VAC, the 1500 W gives 1000 W at 100 VAC and 1100 W at 110–120 VAC, and the 1000 W gives 800 W at 100–120 VAC.
Every chassis needs seven fan kits of one fan each — Standard, High Performance or closed-loop liquid cooling, chosen by processor TDP, drives and backplanes.
Direct Liquid Cooling (kit P84312-B21) needs six performance fan kits and ships only as a whole rack, in a 42U or 48U 800 × 1200 mm Enterprise G2 rack.

07 — Management, security & OS

Run it, secure it, choose the OS

Management

HPE iLO 7 on a DC-SCM module (required, included)
Dedicated 1 GbE iLO port on the DC-SCM · front USB-C iLO service port
Intelligent Provisioning; iLO Advanced and HPE OneView optional
HPE Compute Ops Management — 3-year subscription added by default
iLO RESTful API (Redfish conformant), Active Health System and iLO mobile app

Security

HPE iLO 7 embedded security
iLO-managed and UEFI-managed encryption with self-encrypting drives
One-button secure erase (NIST SP 800-88)
FIPS 140-3, NIST SP 800-53 and NIST SP 800-171 compliance
Embedded TPM 2.0
System maintenance switch, USB security, bezel lock and chassis intrusion switch
HPE Trusted Supply Chain option

Operating systems

Operating systems and hypervisors are certified through HPE’s Servers Support & Certification Matrices; the QuickSpecs carries no supported-OS list of its own
Intel VROC NVMe RAID levels depend on the licence purchased

08 — Compare

How the DL320 Gen12 compares with its family

Several of its backplane kits carry “DL3XX Gen12 1U” names rather than DL320-specific ones. The chart compares the DL320 Gen12 with the Gen11 DL320, the DL360 Gen12, the DL325 Gen12, the 2U single-socket DL340 Gen12 and the short-depth DL110 Gen12, using each model’s documented limits.

This modelSiblings and successorEach value from that model’s own verified spec file · bars scale per column

DL320 Gen11 data sheet DL360 Gen12 data sheet DL325 Gen12 data sheet DL340 Gen12 data sheet DL110 Gen12 data sheet Dell PowerEdge R470 data sheet Lenovo ThinkSystem SR630 V4 data sheet Dell PowerEdge R6615 data sheet

09 — Use cases

Four builds that suit the DL320 Gen12

Four single-socket builds that stay inside the QuickSpecs cooling and chassis rules, from an E-core container node to a Rich I/O GPU box. All parts come from the DL320 Gen12 configurator allow-list and load straight into the configurator.

Cloud-native & edge

144 E-cores behind one iLO

The 6766E gives one socket 144 E-cores for container fleets and scale-out edge services. At 250 W it needs the high-performance heatsink and fans but stays on air, and eight 64 GB DIMMs — one per channel — keep the memory at 6400 MT/s.

1 × Xeon 6766E — 144 cores @ 1.9 GHz, 250 W
8 × 64 GB DDR5-6400 RDIMM — 512 GB, one per channel
8 × 3.84 TB NVMe Gen4 U.3 SFF — 30.72 TB raw, direct attach
NS204i-u v2 mirrored NVMe boot (2 × 480 GB)
Broadcom BCM57414 2 × 25GbE SFP28 OCP 3.0
2 × 1500 W M-CRPS Titanium
Red Hat Enterprise Linux 9

HPE makes direct-attach NVMe depend on PCIe lane availability, so we confirm the backplane cabling when we quote. The 25GbE card also calls for high-performance fans.

Open this build in the configurator →

AI inference

Two-L40S Rich I/O inference node

The GPU chassis takes two double-wide L40S cards at the front, and HPE requires a Rich I/O processor there so the slots and drive cages get enough PCIe lanes. The 32-core 6731P is a Rich I/O part at 245 W, so it runs on the high-performance heatsink rather than liquid cooling.

1 × Xeon 6731P — 32 cores @ 2.5 GHz, 245 W
2 × NVIDIA L40S 48 GB (front GPU cage)
8 × 64 GB DDR5-6400 RDIMM — 512 GB
4 × 7.68 TB E3.S NVMe in one 4-bay stacking cage — 30.72 TB raw
NS204i-u v2 mirrored NVMe boot
Broadcom BCM57414 2 × 25GbE SFP28 OCP 3.0
2 × 2400 W M-CRPS Titanium
Red Hat Enterprise Linux 9

Each L40S needs HPE’s front GPU L40S power cable kit (P75110-B21) and performance fans. The 2400 W supply delivers 1200 W at 100–127 VAC, so plan a 200–240 V feed.

Open this build in the configurator →

Backup & archive

288 TB of disk in one rack unit

The 12 LFF chassis matches HPE’s largest disk figure — twelve 24 TB drives, 288 TB raw — in one rack unit. An eight-core 6507P at 3.5 GHz and 150 W runs on the standard heatsink and fans, and a cached MR416i-p handles RAID across all twelve bays.

1 × Xeon 6507P — 8 cores @ 3.5 GHz, 150 W
8 × 32 GB DDR5-6400 RDIMM — 256 GB
12 × 24 TB 7.2K SAS LFF HDD — 288 TB raw
HPE MR416i-p Gen11 8 GB cache PCIe controller
NS204i-u v2 mirrored NVMe boot
Broadcom BCM57412 2 × 10GbE SFP+ OCP 3.0
2 × 1000 W M-CRPS Titanium
Windows Server 2025 Standard

The 12 LFF chassis is 99.74 cm deep and needs a 1200 mm rack. Performance RAID controllers need the Smart Storage hybrid capacitor or the 96 W Li-ion battery.

Open this build in the configurator →

Virtualisation

32-core P-core hypervisor

The 6730P brings 32 P-cores at 2.5 GHz and 250 W, paired here with a terabyte of DDR5-6400 at one DIMM per channel. Eight U.3 NVMe drives behind the MR932i-p x32 Gen5 controller give the host local flash with hardware RAID.

1 × Xeon 6730P — 32 cores @ 2.5 GHz, 250 W
8 × 128 GB DDR5-6400 RDIMM — 1 TB, one per channel
8 × 7.68 TB NVMe Gen4 U.3 SFF — 61.44 TB raw
HPE MR932i-p x32 PCIe Gen5 controller
NS204i-u v2 mirrored NVMe boot
Broadcom BCM57504 4 × 25GbE SFP28 OCP 3.0
2 × 1500 W M-CRPS Titanium
VMware vSphere 8 Essentials Plus

The 128 GB DIMMs and the 25GbE card both require high-performance fans, and the 250 W processor needs the High Performance Heatsink with seven high-performance fan kits.

Open this build in the configurator →

10 — Refurbished alternatives

When a refurbished ProLiant makes more sense

Where Xeon 6 and DDR5-6400 are more than the job needs, these re-certified ProLiants from our refurbished configurator cover single-socket, 1U and dense-disk roles on older platforms.

Gen10 Plus · re-certified

ProLiant DL325 Gen10 Plus

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

Edge and consolidation hosts that want one socket with plenty of lanes but have no need for Xeon 6 or DDR5.

Configure a refurbished DL325 Gen10 Plus →

Gen10 Plus · re-certified

ProLiant DL360 Gen10 Plus

1U · two 3rd Gen Xeon (Ice Lake)
DDR4-3200 · up to 8 TB
PCIe 4.0 · 10 NVMe bays
iLO 5

Hypervisor hosts that need more memory headroom than one socket gives, in the same 1U space.

Configure a refurbished DL360 Gen10 Plus →

Gen10 Plus · re-certified

ProLiant DL380 Gen10 Plus

2U · two Ice Lake Xeon
32 DIMMs · up to 8 TB DDR4
24 × SFF or 12 × LFF
OCP 3.0 · iLO 5

Backup and file repositories that can spare a second rack unit for more drive flexibility than the 12 LFF DL320.

Configure a refurbished DL380 Gen10 Plus →

Refurbished HPE ProLiant servers Refurbished ProLiant configurator New vs refurbished cost calculator

11 — Full specifications

HPE ProLiant Compute DL320 Gen12 specifications

Chassis & cooling

Form factor	1U rack · one processor socket · DC-MHS design
CTO models	SFF (P71437-B21) · SFF/EDSFF (P75217-B21) · 4 LFF (P75218-B21) · 12 LFF (P75219-B21) · GPU (P75220-B21)
Dimensions (H × W)	4.28 × 43.46 cm
Depth	60.75 cm (SFF) · 66.70 cm (SFF/EDSFF, 4 LFF) · 82.18 cm (GPU) · 99.74 cm (12 LFF, 1200 mm rack)
Weight	11.5 kg (SFF light load) to 28.93 kg (12 LFF maximum)
Fans	Seven single-fan kits: Standard, High Performance or closed-loop liquid cooling
Heat sinks	Standard (P48904-B21) · High Performance above 185 W · closed-loop liquid above 270 W
Direct Liquid Cooling	Optional kit P84312-B21 · whole-rack shipment only
Inlet temperature	10–35 °C standard · extended ranges for approved configurations

Processor

Sockets	One
Families	Intel Xeon 6 E-core (6700E) and P-core (6500P / 6700P), including the Mainline group and the single-socket Rich I/O group
Cores per processor	64–144 E-cores or 8–86 P-cores
TDP	135 W to 350 W

Memory

Slots	16 DDR5 RDIMM · 8 channels · 2 DIMMs per channel
Module sizes	16, 32, 64, 96 and 128 GB RDIMM · 256 GB 3DS RDIMM — all DDR5-6400
Speed	6400 MT/s at 1 DPC · 5200 MT/s at 2 DPC
Maximum	4 TB (16 × 256 GB)
Protection	Advanced ECC · ADDDC (enabled by default)

Storage

Front bays	8 or 10 × SFF · 10 × SFF or 20 × E3.S · 4 × LFF · 12 × LFF · 8 × E3.S or 4 × SFF (GPU)
Backplanes	8SFF x1 Tri-Mode U.3 · 8SFF x4 NVMe U.2 or U.3 · 2SFF x4 Tri-Mode or NVMe · 4EDSFF and 2SFF stacking
Controllers	MR216i-p/-o, MR408i-o, MR416i-o/-p, MR932i-p · E208e-p external · Intel VROC NVMe
Boot	NS204i-u v2 480 GB — front hot-plug, rear hot-plug or internal
Optical	Optional on the SFF, SFF/EDSFF and 4 LFF chassis

Expansion & networking

PCIe	2 × x16 PCIe 5.0 FHHL (primary and secondary risers)
OCP	Rear OCP A (embedded) and B (optional) · 2 optional front OCP 3.0 · all PCIe 5.0 x16
Embedded LAN	None — an OCP or PCIe adapter is required
Fibre Channel	SN1610Q and SN1620E 32Gb · SN1700Q and SN1720E 64Gb HBAs

Accelerators

GPU envelope	2 × double-wide or 4 × single-wide in the GPU chassis · NVIDIA L4 24 GB, L40S 48 GB

Power

Supplies	Up to two M-CRPS hot-plug units · no mixing · cords not included
AC	1000, 1500 and 2400 W Titanium · 800 W named Platinum (Core Options)
DC	1300 W and 2200 W −48 V DC

Ports & video

Front	USB 3.2 Gen1 · USB-C iLO service port · optional USB 2.0 and DisplayPort
Rear	VGA and 1 GbE iLO on the DC-SCM · 2 × USB 3.2 Gen1 · optional serial
Internal	1 × USB 3.2 Gen1
Video	Up to 1920 × 1200 at 60 Hz · 16 MB

12 — FAQ

DL320 Gen12 questions, answered from the documentation

What is the maximum memory of the HPE ProLiant DL320 Gen12?

4 TB, as sixteen 256 GB 3DS RDIMMs. Two DIMMs on each of the eight channels brings the speed down to 5200 MT/s, so the largest one-per-channel build is 8 × 256 GB = 2 TB, at up to 6400 MT/s depending on the processor. DIMMs of 96 GB and up need high-performance fans.

Which processors does the DL320 Gen12 support?

One Intel Xeon 6 processor from 32 option kits: E-core 6700E parts with 64 to 144 cores, and P-core 6500P and 6700P parts spanning 8 to 86 cores (six are Rich I/O single-socket models). TDPs run from 135 W to 350 W, and anything above 270 W needs HPE’s closed-loop liquid-cooling heat sink.

How many drive bays does the DL320 Gen12 have?

Up to 20 E3.S 1T drives in the SFF/EDSFF chassis, ten 2.5-inch drives in the SFF or SFF/EDSFF chassis, twelve or four 3.5-inch drives in the LFF chassis, while the GPU chassis holds 8 E3.S or 4 SFF drives in stacking cages alongside its GPUs. The NS204i-u boot device adds two M.2 NVMe drives outside the bays.

Can the DL320 Gen12 run GPUs?

Only the GPU chassis: its front cage takes two double-wide or four single-wide cards. HPE lists the NVIDIA L4 24 GB and L40S 48 GB, both needing performance fans, and that chassis must use a Rich I/O processor.

What networking does the DL320 Gen12 include?

None on the board. You fit OCP 3.0 cards in rear slots A and B (plus two front slots on the SFF/EDSFF chassis) or use PCIe adapters; HPE’s list runs from 4-port 1GbE to 200Gb Ethernet and 400Gb InfiniBand/Ethernet cards. Any adapter of 25 Gb or faster needs high-performance fans.

How many PCIe slots does it have?

Two x16 PCIe 5.0 full-height, half-length slots on the primary and secondary risers, plus the OCP 3.0 slots, which are also PCIe 5.0 x16. The GPU chassis adds a front GPU cage, and HPE’s placement notes refer to slots 4 to 6 inside it.

How big is the DL320 Gen12?

Every chassis is 4.28 cm high and 43.46 cm wide. Depth is 60.75 cm for SFF, 66.70 cm for SFF/EDSFF and 4 LFF, 82.18 cm for the GPU chassis and 99.74 cm for 12 LFF, which needs a 1200 mm rack; weights run from 11.5 kg to 28.93 kg.

How does the DL320 Gen12 differ from the DL320 Gen11?

Gen12 moves from 4th and 5th Gen Xeon Scalable (up to 60 cores) to Xeon 6 (up to 144), from DDR5-5600 with a printed 2.04 TB ceiling to DDR5-6400 and 4 TB, and from iLO 6 to iLO 7 on a DC-SCM module. It adds the 20-bay SFF/EDSFF chassis and front OCP slots, swaps Flex Slot for M-CRPS supplies, and drops the two embedded 1GbE ports.

Which power supplies does it use?

Up to two M-CRPS hot-plug units of one model: 1000, 1500 or 2400 W Titanium, an 800 W unit HPE names Platinum, or 1300 W and 2200 W −48 V DC supplies. HPE’s option list rates all of them at 96% efficiency; at 100–127 VAC the 2400 W unit delivers 1200 W.

Is the HPE ProLiant DL320 Gen12 end of life?

HPE’s QuickSpecs gives no end-of-sale or end-of-support date for it: Version 20, dated 8 September 2026, was still adding processors — the 6503P arrived in it. HPE’s base warranty runs three years (parts, labour, on-site by the next business day); any dates HPE publishes later will appear in our end-of-life checker.

Sources & verification

Where these figures come from

HPE ProLiant Compute DL320 Gen12 QuickSpecs (Version 20 - 08-Sep-2026) — Overview, What’s New and chassis types; Standard Features (processors, memory, expansion slots, maximum storage, controllers, power, interfaces, management, security, warranty); Step 1–3 configuration rules; Core Options (processor cooling, memory rules, riser and front OCP kits, GPUs, Direct Liquid Cooling, power supplies); Technical Specifications (dimensions, weight, power output, inlet temperature); images confirmed by the front-ear badge and, inside, by one socket, 16 DIMM slots and the DC-SCM module.
HPE ProLiant DL320 Gen11 QuickSpecs (Version 41 - 03-Aug-2026) — Gen11 processors, memory ceiling, management, power supplies and embedded networking used in the generational FAQ.
HPE ProLiant Compute DL340 Gen12 QuickSpecs (Version 15 - 08-September-2026) — DL340 Gen12 described as a 2U single-socket server (family note).
HPE ProLiant Compute DL110 Gen12 QuickSpecs (Version 3 - April 6, 2026) — DL110 Gen12 described as a compact, short-depth 1U single-socket server (family note).

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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The DL320 Gen12 at a glance

Strengths

Watch-outs

32 supported processors, mapped

Processor landscape — cores × TDP

Processor explorer

16 DDR5 DIMM slots

Capacity with every slot filled

Operating speed

9 drive-cage kits, up to 20 bays

Headline layouts

Controllers & boot

Every documented drive-cage kit

GPUs, PCIe and networking

NVIDIA L4 24GB PCIe Accelerator for HPE

NVIDIA L40S 48GB PCIe Accelerator

I/O topology

Network adapters HPE lists

6 power supplies, 800–2,400 W

Run it, secure it, choose the OS

Management

Security

Operating systems

How the DL320 Gen12 compares with its family

Four builds that suit the DL320 Gen12

144 E-cores behind one iLO

Two-L40S Rich I/O inference node

288 TB of disk in one rack unit

32-core P-core hypervisor

When a refurbished ProLiant makes more sense

ProLiant DL325 Gen10 Plus

ProLiant DL360 Gen10 Plus

ProLiant DL380 Gen10 Plus

HPE ProLiant Compute DL320 Gen12 specifications

Chassis & cooling

Processor

Memory

Storage

Expansion & networking

Accelerators

Power

Ports & video

DL320 Gen12 questions, answered from the documentation

Where these figures come from

Buy & configure

Guides & family

Plan the deployment

Support & lifecycle

Get a quote for the HPE ProLiant Compute DL320 Gen12

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