HPE ProLiant DL20 Gen11 Networking Adapters

The DL20 Gen11 takes network adapters in its one OCP 3.0 slot and in one PCIe 5.0 slot on one riser. Four 1GbE RJ-45 ports embedded on all chassis types (the Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T adapter); port 1 is shared by iLO and production data. HPE's QuickSpecs list 15 network adapters (Ethernet) for it.

  • 15 adapters
  • 1GbE to 25GbE
  • New and refurbished
  • Tested or factory sealed

From the HPE ProLiant DL20 Gen11 QuickSpecs (a50007009enw, version 29, 05-October-2026).

Slot map

Where each adapter goes in a DL20 Gen11

OCP 3.0
One external OCP 3.0 slot (slot 2) for network adapters, x4, wired to the PCH pp. 9, 23
Built-in ports
4 x 1GbE pp. 8, 11, 23
PCIe riser
Slot 1: PCIe 5.0 x16. On processor 1. pp. 4–5, 9
HPE's words for each line
  • OCP 3.0 “2 External OCP 3.0 x4 x4 PCH OCP 3.0” (page 9) “External OCP 3.0 is for networking (NIC) controller OCP form factor options.” (page 9) “1 PCIe 5.0 slot, 1 Internal OCP Storage Controller slot, 1 External OCP 3.0 Network Controller slot” (page 23)
  • Built-in ports “Embedded Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter.” (page 8) “Network Ports (RJ-45) 4x 1GbE embedded NIC (standard on all chassis types)” (page 11) “Port 1 is used as shared port for iLO and production data.” (page 8) “Network Controller HPE embedded 1Gb 4-port BCM5719 network Adapter” (page 23)
  • PCIe riser “1 PCIe 5.0 x16 x16 CPU 1 Full height half length” (page 9) “Slot 1 PCIe 5.0” (page 5) “PCIe Riser” (page 4)

From the HPE ProLiant DL20 Gen11 QuickSpecs (a50007009enw, version 29, 05-October-2026).

All DL20 Gen11 network adapters

The network adapters HPE's QuickSpecs list for the DL20 Gen11, 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 DL20 Gen11?

OCP 3.0PCIe adapter
How manyOne external OCP 3.0 slot (slot 2) for network adapters, x4, wired to the PCH.One PCIe 5.0 slot on one riser
What HPE has listed1GbE to 25GbE Ethernet1GbE to 25GbE Ethernet
How to tell from the nameOCP3 in the nameNo OCP3 in the name

How to choose a DL20 Gen11 network adapter

Rule 1

Decide the OCP 3.0 adapter first

At most one OCP network adapter can be selected.

HPE: “Notes: Max of 1 OCP Networking Adaptor can be selected.” (page 33)

Rule 2

Check the cooling

If iLO cannot read the temperature sensor of a component such as a third-party OCP card, it runs the fans at full speed, so the server is louder.

HPE: “When HPE iLO cannot detect a temperature sensor from a component—such as a third-party OCP card or optional hardware—it assumes the worst-case scenario to protect the server.” (page 46)

Rule 3

Mind the slot rules

Slot 3 is an internal OROC slot for OCP storage controllers; an internal OROC controller and an external OCP 3.0 network adapter can be fitted together.

HPE: “Internal OROC and External OCP 3.0 options can be selected together.” (page 9)

DL20 Gen11 adapter questions

How many network adapters can a DL20 Gen11 take?

The DL20 Gen11 takes network adapters in its one OCP 3.0 slot and in one PCIe 5.0 slot on one riser. At most one OCP network adapter can be selected.

Does the DL20 Gen11 have network ports built in?

Four 1GbE RJ-45 ports embedded on all chassis types (the Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T adapter); port 1 is shared by iLO and production data. Network Choice models have no embedded LOM.

What does “Listed in QuickSpecs version 29” mean?

It means the adapter is in version 29 of HPE's QuickSpecs for the DL20 Gen11, the edition this page is built from.

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 DL20 Gen11

DL20 Gen11 storage controllersDL20 Gen11 drivesDL20 Gen11 memoryDL20 Gen11 power suppliesAll DL20 Gen11 partsDL380 Gen11 networking adaptersDL360 Gen11 networking adaptersDL20 Gen10 networking adapters

Most ordered for the DL20 Gen11

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

7 adapters

One external OCP 3.0 slot (slot 2) for network adapters, x4, wired to the PCH.

PCIe Ethernet adapters

8 adapters

Stand-up cards for the PCIe slots.

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