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Green PCB network card with two SFP+ cages and PCIe bracket

HPE

HPE P26259-B21 BCM57412 10Gb 2-port SFP+ network card

SKU CH-2N5A-7BK57 MPN P26259-B21

A dual-port 10Gb SFP+ adapter with PCIe 3.0 x8 host interface, delivering 1.25 GB/s throughput and RDMA offload for latency-sensitive workloads

  • Two 10 Gb ports handle heavy bandwidth workloads
  • PCI Express 3.0 x8 host interface delivers high throughput
  • RDMA and tunnelling offloads reduce CPU utilisation
  • Digitally signed firmware with root-of-trust prevents rogue code
  • SFP+ optical fibre support suits data-centre links

HPE 10Gb 2-port SFP+ Adapter

The HPE P26259-B21 is a dual-port 10 Gigabit Ethernet network card built around the Broadcom BCM57412 controller. It targets servers and workstations that need low-latency, high-throughput connections over optical fibre.

PCI Express 3.0 x8 host interface

The card installs into a PCI Express 3.0 x8 slot, which determines whether the system can deliver full line-rate bandwidth. Verify the motherboard or riser provides an x8 electrical link; an x4 slot will halve the available throughput.

Requires SFP+ optical transceivers and fibre cabling

Two SFP+ cages accept standard optical modules, so you choose reach and fibre type to match the link. The adapter offloads RDMA and tunnelling tasks to reduce CPU load, freeing cycles for applications rather than packet processing.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $609.99
Pricier than about 90% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameHPE
Size & build
Shipping weight0.45 kg
Package size292 × 188 × 178 mm

Questions about this item

What does the 10Gb rating mean for throughput once the card is installed in a server?

The adapter delivers up to 1.25 GB/s per port over optical SFP+ links, giving two independent 10Gb Ethernet connections for bandwidth-intensive workloads.

Which host interface standard does the card use and what lane width does it occupy?

It plugs into a PCI Express 3.0 x8 slot, providing enough bandwidth for both 10Gb ports without bottlenecking the host bus.

What physical slot and module type are required to mount and connect this adapter?

The card needs a full-height PCIe x8 slot and uses two SFP+ cages that accept standard 10Gb optical transceivers.

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