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HPE FlexFabric 10Gb 2-port 556FLR-SFP+ Adapter in green PCB with silver SFP+ cages and gold PCIe 2.0 x8 edge connector

HPE

HPE 556FLR-SFP 10Gb 2-port FlexFabric network card

SKU CH-EHSS-XSG4C MPN 556FLR-SFP

A dual-port 10GbE FlexFabric adapter for ProLiant Gen9 FlexibleLOM slots with SFP+ connectivity

  • High-performance 10 Gb Ethernet for ProLiant Gen9 servers
  • Dual SFP+ ports enable flexible 10GBase-X connectivity
  • PCI Express 2.0 x8 host interface delivers full bandwidth
  • RDMA and Tunnel Offload accelerate virtualised workloads
  • FlexibleLOM form factor fits Gen9 rack and tower servers

Purpose-built 10Gb adapter

The HPE 556FLR-SFP+ is a 10 Gigabit Ethernet network interface card designed for HP ProLiant Gen9 rack and tower servers. It installs in the FlexibleLOM socket and delivers two SFP+ ports for fibre connectivity. The card supports RDMA and Tunnel Offload to accelerate virtualised workloads and improve data centre efficiency.

Suited for Gen9 FlexibleLOM slots

This adapter suits administrators upgrading Gen9 servers that have an available FlexibleLOM slot and need dual 10GbE links over SFP+ transceivers. It is not for systems that lack the FlexibleLOM form factor or that require a different host interface. Buyers needing more than two ports or a different connector type should look at other options.

PCI Express 2.0 x8 host interface

The card connects through a PCI Express 2.0 x8 host interface, which determines whether it can be installed in a given server. Verify that the target platform provides this exact slot type before purchase. The 727060-B21 part number confirms the correct model for ordering and compatibility checks.

How it compares

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

Price $122.99
Pricier than about 56% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameHPE

Questions about this item

Does my ProLiant Gen9 server need an open FlexibleLOM socket for this adapter?

Yes, the 556FLR-SFP+ installs directly into the FlexibleLOM socket on HPE ProLiant Gen9 rack and tower servers.

Will the SFP+ ports link at 10 GbE with my existing SFP+ direct-attach cables?

The two SFP+ ports support 10GBase-X, so compatible SFP+ DACs or optics will negotiate a 10 Gb Ethernet link.

How can I verify the PCI Express 2.0 x8 host interface is active after installation?

Check the server BIOS or operating-system device manager to confirm the adapter appears as a PCIe 2.0 x8 device with both ports linked.

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