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P10115-B21: HPE Ethernet 10/25Gb 2-port SFP28 BCM57414 OCP3 Adapter

HPE P10115-B21 OCP adapterPCIe 3.0 x8 OCP 3.025GbE and 10GbE auto-neg
HPEOCP adaptersPCIe 3.0 x8 OCP 3.0

Also listed as: P12868-001, P10117-001, BCM957414A4140C, BCM57414, P10761-001, P10112-001, BCM57414-OCP3, 57414-OCP3 · made by Broadcom

The HPE Ethernet 10/25Gb 2-port SFP28 BCM57414 OCP3 Adapter (P10115-B21) is a specialized OCP 3.0 form-factor network adapter engineered for ProLiant Gen10 Plus and Gen11 servers. Powered by the Broadcom NetXtreme-E BCM57414 controller, it occupies a dedicated OCP slot, preserving valuable standard PCIe slots for storage controllers or GPUs. It supports 25GbE and 10GbE speeds, RoCE v2 RDMA, and overlay network offloads (VXLAN, Geneve). Used buyers should inspect the OCP connector edge card and ensure the ejector latch mechanism is undamaged.

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Specifications

Part numberP10115-B21
BrandHPE
Made byBroadcom
TypeOCP adapters
Other numbersP12868-001, P10117-001, BCM957414A4140C, BCM57414, P10761-001, P10112-001, BCM57414-OCP3, 57414-OCP3
Statuscurrent
Speed25GbE and 10GbE auto-negotiation
Ports2x 10/25GbE SFP28 optical ports
InterfacePCIe 3.0 x8 OCP 3.0
Form factorOCP 3.0 small form factor (SFF) adapter with pull-tab or thumbscrew latch
ControllerBroadcom BCM57414
Generation fitHPE ProLiant Gen10 Plus and Gen11 servers

About the P10115-B21

P10115-B21 is HPE's dual-port 10/25GbE SFP28 OCP 3.0 mezzanine adapter based on the Broadcom BCM57414 NetXtreme-E silicon. Engineered specifically for ProLiant Gen10 Plus and Gen11 servers, it installs directly into dedicated OCP 3.0 slots, saving PCIe risers while delivering full line-rate 25Gb/s bandwidth, RoCE v2 RDMA, and advanced network offloads.

Compatibility

Compatible with HPE ProLiant Gen10 Plus and Gen11 servers equipped with OCP 3.0 slots, including DL380 Gen10 Plus, DL380 Gen11, DL360 Gen10 Plus, and DL360 Gen11. Connects to HPE Aruba CX 8325 and CX 8360 switches, supporting iSCSI and NVMe/TCP storage traffic to HPE Alletra Storage MP and Alletra 6000 arrays.

How to identify a genuine unit

The adapter features an OCP 3.0 small form factor PCB with two SFP28 ports and an ejector handle. The HPE barcode label indicates option part number P10115-B21, spare part number P10761-001, and assembly number P10112-001. Identifies under HPE vendor ID 103C in system inventory.

Buying used

Inspect the gold OCP edge fingers for scratches, pitting, or chipped traces. Check that the metal ejector latch operates smoothly without jamming. Verify in HPE iLO that the card is recognized in the OCP slot, links up at full 25GbE speed, and passes onboard diagnostic self-tests.

Reference prices (last 14 days, updated 2026-10-27)

New: USD 315 (1 sighting, Oct 2026)

Refurbished: USD 140 (1 sighting, Oct 2026)

Used: USD 185 (1 sighting, Oct 2026)

All sightings
SellerConditionPriceNoteSeen
serversupply.comnewUSD 315New factory sealed retail option kit2026-10-27
globalonetechnology.comrefurbishedUSD 140Refurbished with clean diagnostic pass2026-10-27
serversupply.comusedUSD 185Tested OCP 3.0 dual-port 25GbE adapter with pull-tab2026-10-27

Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.

Fits these models

Works together

How the HPE P10115-B21 connects to servers, storage and the network: 3 ways, with the hardware on each path.

iSCSI and NVMe/TCP over EthernetFile storage (NFS and SMB)Hyperconverged cluster

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

Hyperconverged cluster

Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.

HCI nodes

Switches

Optics

Hyperconverged cluster: how it fits together

Plan and size it

Check compatibility with HPE

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that HPE has tested with the HPE P10115-B21.

Equivalent part numbers

FAQ

Can the SFP28 ports on P10115-B21 connect to standard 10Gb SFP+ transceivers?

Yes, SFP28 ports are backward compatible with 10Gb SFP+ optical transceivers and direct attach copper (DAC) cables, auto-negotiating down to 10GbE line speed.

What is the difference between P10115-B21 and P10118-B21?

P10115-B21 is a standard PCIe card form factor, whereas P10118-B21 is the OCP 3.0 mezzanine form factor utilizing the same Broadcom BCM57414 silicon.

What is the spare part number for the P10115-B21 OCP adapter?

The HPE spare part number is P10761-001, corresponding to board assembly P10112-001.

Can this adapter be installed in standard PCIe slots?

No, it is an OCP 3.0 small form factor mezzanine adapter that requires a dedicated OCP 3.0 slot.

Buying or selling P10115-B21?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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