HPE ProLiant DL345 Gen12 Networking Adapters

The DL345 Gen12 takes network adapters in its OCP 3.0 slots and in up to 10 PCIe 5.0 slots. No embedded network ports; networking comes from a choice of OCP 3.0 or PCIe stand-up network adapters. HPE's QuickSpecs list 29 network adapters (Ethernet and InfiniBand) and 6 Fibre Channel HBAs for it.

  • 35 adapters
  • 1GbE to 100GbE · 32 and 64Gb Fibre Channel
  • New and refurbished
  • Tested or factory sealed

From the HPE ProLiant Compute DL345 Gen12 QuickSpecs (a50009233enw, version 13, 05-October-2026).

Slot map

Where each adapter goes in a DL345 Gen12

OCP 3.0
Two rear OCP 3.0 slots on every CTO server: slot A (default, PCIe 5.0 x16) and slot B (optional, PCIe 5.0 x8 or x16), both with x16 connectors pp. 6, 11, 24
OCP 3.0
Two optional front OCP 3.0 slots, Primary and Secondary, each PCIe 5.0 x16 with an x16 connector, on the SFF/EDSFF and GPU CTO servers pp. 2, 11, 24
Built-in ports
None pp. 13, 24
Primary
Slots 1–3: x16, x16, x16. pp. 2, 6, 11
Secondary
Slots 4–6: x16, x16, x16. pp. 2, 6, 11, 24
Front default (GPU CTO server)
Slots 10, 12: PCIe 5.0 x16, x16. pp. 2, 4, 11, 40
Front optional (GPU CTO server)
Slots 15, 17: PCIe 5.0 x16, x16 (slot 15 with P84160-B21; slot 17 with P84160-B21). pp. 2, 4, 11, 40
HPE's words for each line
  • OCP 3.0 “OCP A (Default) PCIe 5.0 X16 X16 OCP 3.0” (page 11) “OCP B (Optional) PCIe 5.0 X8 or X16 X16 Applicable to all CTO servers” (page 11) “Rear: Default Slot A (x16), optional slot B (x8 or x16)” (page 24) “Optional OCP 3.0 Slot B” (page 6) “Default OCP 3.0 Slot A” (page 6)
  • OCP 3.0 “Front Primary OCP PCIe 5.0 X16 X16” (page 11) “Front Secondary OCP PCIe 5.0 X16 X16” (page 11) “OCP 3.0, applicable to the SFF/EDSFF and GPU CTO server” (page 11) “Front: optional Primary (x16) and Secondary slot (x16)” (page 24) “Optional front OCP 3.0 slots” (page 2)
  • Built-in ports “Network Ports None. Choice of OCP or stand-up card, supporting a wide range of NIC adapters” (page 13) “Choice of PCIe stand-up or OCP 3.0 network adapters” (page 24)
  • Primary “Primary PCIe 5.0 Risers” (page 6) “PCIe Slots 1,2,3 top to bottom.” (page 6) “1 (Optional) PCIe 5.0 X16 X16” (page 11) “2 (Optional) PCIe 5.0 X16 X16” (page 11) “3 (Optional) PCIe 5.0 X16 X16” (page 11) “Full-height, Half-length slot Applicable to all CTO servers” (page 11) “this server is a superb single-socket 2U solution” (page 2)
  • Secondary “Secondary PCIe 5.0 Risers” (page 6) “PCIe Slots 4,5,6 top to bottom.” (page 6) “4 (Optional) PCIe 5.0 X16 X16” (page 11) “5 (Optional) PCIe 5.0 X16 X16” (page 11) “6 (Default) PCIe 5.0 X16 X16” (page 11) “Full-height, Half-length slot Applicable to all CTO servers” (page 11) “Optional: Slot 1, 2, 3, 4, 5” (page 24) “Optional: Slot 1, 2, 3, 15, 17.” (page 24) “this server is a superb single-socket 2U solution” (page 2)
  • Front default (GPU CTO server) “Default riser cage, slot 10 and 12” (page 4) “Optional riser cage, slot 15 and 17” (page 4) “10 (Default) PCIe 5.0 X16 X16” (page 11) “12 (Default) PCIe 5.0 X16 X16” (page 11) “15 (Optional) PCIe 5.0 X16 X16” (page 11) “17 (Optional) PCIe 5.0 X16 X16” (page 11) “Full-height, Full-length slot, only applicable to the GPU CTO server” (page 11) “HPE ProLiant Compute DL345 Gen12 Front 4xGPU Enablement Kit P84160-B21” (page 40) “Notes: This kit enables slots 15 and 17 at the front cage of the GPU CTO server.” (page 40) “this server is a superb single-socket 2U solution” (page 2)
  • Front optional (GPU CTO server) “Default riser cage, slot 10 and 12” (page 4) “Optional riser cage, slot 15 and 17” (page 4) “10 (Default) PCIe 5.0 X16 X16” (page 11) “12 (Default) PCIe 5.0 X16 X16” (page 11) “15 (Optional) PCIe 5.0 X16 X16” (page 11) “17 (Optional) PCIe 5.0 X16 X16” (page 11) “Full-height, Full-length slot, only applicable to the GPU CTO server” (page 11) “HPE ProLiant Compute DL345 Gen12 Front 4xGPU Enablement Kit P84160-B21” (page 40) “Notes: This kit enables slots 15 and 17 at the front cage of the GPU CTO server.” (page 40) “this server is a superb single-socket 2U solution” (page 2)

From the HPE ProLiant Compute DL345 Gen12 QuickSpecs (a50009233enw, version 13, 05-October-2026).

All DL345 Gen12 network adapters

The network adapters HPE's QuickSpecs list for the DL345 Gen12, grouped by slot and type. In each group the adapters in stock come first, then the ones our customers order most.

OCP 3.0 or PCIe on the DL345 Gen12?

OCP 3.0PCIe adapter
How manyTwo rear OCP 3.0 slots on every CTO server: slot A (default, PCIe 5.0 x16) and slot B (optional, PCIe 5.0 x8 or x16), both with x16 connectors.Up to 10 PCIe 5.0 slots
What HPE has listed1GbE to 100GbE Ethernet1GbE to 100GbE Ethernet; InfiniBand adapters; 32 and 64Gb Fibre Channel HBAs
How to tell from the nameOCP3 in the nameNo OCP3 in the name

How to choose a DL345 Gen12 network adapter

Rule 1

Decide the OCP 3.0 adapter first

Rear OCP slots A and B and the front Primary OCP slot support shared-NIC (NCSI) and Wake on LAN; the front Secondary OCP slot supports Wake on LAN only.

HPE: “Both rear OCP slots (slots A and B) and the front Primary OCP slot (Box 2 Bay 9) support shared-NIC and WOL (Wake on LAN) functions. Front Secondary OCP (Box2 Bay11) only supports WOL without the shared-NIC function.” (page 11)

Rule 2

Match the cabling to the switch

When configuring, a tracking SKU records the networking cable type: AOC P79630-B21 or DAC/ACC P79633-B21 (also chosen for 1/2.5/10Gb BASE-T adapters on RJ45 cable); transceivers cannot be configured with P79633-B21, and AOC needs a lower ambient temperature than DAC.

HPE: “Transceivers cannot be configured if P79633-B21 is selected.” (page 27)

Rule 3

Check the cooling

With AOC or transceivers, HPE limits PCIe and OCP 3.0 network adapters by ambient temperature and slot in a thermal support matrix (by CTO server, front storage and processor wattage); options not on the list are supported at 30 °C with AOC.

HPE: “If the slot number is not identified in the matrix, then the ambient temperature applies to all available slots of that type (PCIe standup or OCP).” (page 44)

Rule 4

Mind the slot rules

The AMD processor supports at most 112GB/s for each of four slot groups: slot 1/15 with OCP B, slot 2/17 with slot 3, slot 4/10 with slot 6, and slot 5/12 with OCP A.

HPE: “According to AMD’s CPU limitation, a maximum of 112GB/s bandwidth can be supported for each of the following configurations.” (page 11)

DL345 Gen12 adapter questions

How many network adapters can a DL345 Gen12 take?

The DL345 Gen12 takes network adapters in its OCP 3.0 slots and in up to 10 PCIe 5.0 slots. Up to six PCIe 5.0 x16 full-height slots: slot 6 as standard and slots 1 to 5 optional on the SFF/EDSFF and 8LFF CTO servers; slots 6, 10 and 12 as standard and slots 1, 2, 3, 15 and 17 optional on the GPU CTO server. Rear OCP slots A and B and the front Primary OCP slot support shared-NIC (NCSI) and Wake on LAN; the front Secondary OCP slot supports Wake on LAN only.

Does the DL345 Gen12 have network ports built in?

No embedded network ports; networking comes from a choice of OCP 3.0 or PCIe stand-up network adapters. When configuring, the networking choice covers PCIe stand-up and OCP 3.0 Ethernet and InfiniBand adapters and Fibre Channel HBAs; Smart Chassis first asks for the inlet ambient temperature and the type of networking adapter, then offers config IDs that state how many PCIe and OCP slots are supported.

What does “Listed in QuickSpecs version 13” mean?

It means the adapter is in version 13 of HPE's QuickSpecs for the DL345 Gen12, the edition this page is built from.

Which Fibre Channel HBAs does HPE list for the DL345 Gen12?

HPE lists 32Gb and 64Gb Fibre Channel HBAs (SN1610Q, SN1700Q) and 32Gb and 64Gb FC SecureHBAs (SN1620E, SN1720E) under HPE Fibre Channel Host Bus Adapter. HPE's QuickSpecs list 6 Fibre Channel HBAs for it, by model: SN1610Q, SN1620E, SN1700Q and SN1720E. They are in the Fibre Channel HBAs section of this page.

What if the adapter I need is out of stock?

Out of stock today does not mean unavailable: we can often source this part. Add it to a quote request and we reply with current pricing and availability. Every message, quotes included, is answered within 24 hours.

More for the DL345 Gen12

DL345 Gen12 storage controllersDL345 Gen12 drivesDL345 Gen12 memoryDL345 Gen12 processorsDL345 Gen12 power suppliesAll DL345 Gen12 partsDL380 Gen12 networking adaptersDL320 Gen12 networking adaptersDL345 Gen11 networking adapters

Most ordered for the DL345 Gen12

The adapters on this page our customers order most, for any server. Each card shows only while the store has it in stock.

OCP 3.0 adapters

10 adapters

Two rear OCP 3.0 slots on every CTO server: slot A (default, PCIe 5.0 x16) and slot B (optional, PCIe 5.0 x8 or x16), both with x16 connectors.

PCIe Ethernet adapters

14 adapters

Stand-up cards for the PCIe slots.

InfiniBand and Omni-Path adapters

5 adapters

Under HPE InfiniBand Adapters (PCIe stand-up) HPE lists BlueField DPUs, NDR and NDR200 adapters, XDR CX8 adapters and an XDR PCIe Gen6 x16 Multi Host/Socket Direct auxiliary card with a 250mm MCIO cable kit.

  • P45642-H23HPE InfiniBand NDR200/Ethernet 200Gb 1-port OSFP PCIe5 x16 MCX75310AAS-HEAT Generic Adapter200Gb1 portOSFPPCIeInfiniBand / Omni-PathListed in QuickSpecs version 13
  • P65333-H21HPE InfiniBand NDR200/Ethernet 200GbE 2-port QSFP112 PCIe5 x16 MCX755106AC-HEAT Adapter200Gb2 portsQSFP112PCIeInfiniBand / Omni-PathListed in QuickSpecs version 13
  • P45641-H24HPE InfiniBand NDR/Ethernet 400Gb 1-port OSFP PCIe5 x16 MCX75310AAS-NEAT Generic Adapter400Gb1 portOSFPPCIeInfiniBand / Omni-PathListed in QuickSpecs version 13
  • P79114-H21HPE InfiniBand XDR/Ethernet 2x400GbE 1-port OSFP PCIe6 x16 HHHL CX8 Crypto Adapter400Gb1 portOSFPPCIeInfiniBand / Omni-PathListed in QuickSpecs version 13
  • P79115-H21HPE InfiniBand XDR400/Ethernet 400GbE 2-port QSFP112 PCIe6 x16 HHHL CX8 Crypto Adapter400Gb2 portsQSFP112PCIeInfiniBand / Omni-PathListed in QuickSpecs version 13

Kits and risers HPE lists for these slots

1 kit

Parts that go with the adapters in these slots. They are not counted with the adapters, and the filters leave them out.

  • P81264-H21HPE InfiniBand XDR PCIe Gen6 x16 Multi Host/Socket Direct Auxiliary Card with 250mm MCIO Cable KitListed in QuickSpecs version 13

Fibre Channel HBAs for the DL345 Gen12

HPE lists 32Gb and 64Gb Fibre Channel HBAs (SN1610Q, SN1700Q) and 32Gb and 64Gb FC SecureHBAs (SN1620E, SN1720E) under HPE Fibre Channel Host Bus Adapter. QuickSpecs page 42

Fibre Channel host bus adapters

6 HBAs
Ships same dayMost orders ship the same business day
1-year warrantyReplacement coverage on every part
5,000+ five-star reviewsShopper Approved, BBB A+ rating
Ships to 120+ countriesBy UPS; duties are collected by the carrier

Equipping several servers?

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