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Refurbished HP 10Gb dual-port 561T Ethernet adapter on green PCB

HP Refurbished

HP 716590-B21 10Gb 2P 561T Ethernet adapter

SKU CH-QY33-KM1HR MPN 716590-B21

A dual-port 10 Gb Ethernet adapter with the 561T controller for server connectivity

  • Dual-port design doubles network throughput for demanding server workloads
  • 10 GbE speed accelerates data transfers across high-performance infrastructures
  • Low-profile form factor fits space-constrained rackmount and blade chassis
  • Intel X561 controller ensures reliable connectivity with advanced offload capabilities
  • PCI Express 2.1 x8 interface provides ample bandwidth for dual 10 GbE ports

10Gb dual-port 561T Ethernet adapter

This HP 716590-B21 adapter provides two 10Gb Ethernet ports for server networking. It suits administrators upgrading rack or tower systems that require additional high-speed connectivity. The 561T controller handles traffic across both ports for virtualisation or storage workloads. Buyers needing fibre interfaces or single-port designs should consider other models.

Compatibility check for 561T adapter

Verify that your server has an available PCIe slot with the correct generation and lane width for this card. Confirm the operating system includes or can load a driver for the 561T controller before installation. Ensure the chassis airflow and bracket height match the adapter’s form factor. Systems lacking a compatible slot or driver support will not recognise the device.

Bracket and driver impact on deployment

The adapter ships with a standard-height bracket installed and a low-profile bracket in the package for shallow chassis. Swapping brackets requires only a screwdriver and takes minutes. Driver packages for major server operating systems are available from the vendor’s support site. No management software or licensing keys are bundled with the hardware.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $122.99
Cheaper than about 56% of the 3,798 comparable items (median $131.99).

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Specifications

Size & build
Shipping weight0.91 kg
Package size127 × 102 × 51 mm

Questions about this item

Does the HP 716590-B21 10Gb 2P 561T adapter ship with cables or brackets, or must they be purchased separately?

The adapter is sold as a standalone unit; SFP+ direct-attach cables or optical transceivers and any required mounting brackets are not included and must be sourced separately.

How do I decide between the 561T and other 10 Gb two-port adapters listed under part number 716590-B21?

The 561T designation identifies this specific 10 Gb dual-port model; choose it when your server requires a 561T-compatible mezzanine or PCIe slot and you need two 10 GbE links.

What does the 10 Gb rating mean for actual throughput once the 561T adapter is installed in a server?

Each of the two ports supports up to 10 Gb/s line rate; real-world throughput depends on CPU, bus width, driver tuning and network congestion, but the hardware ceiling is 10 Gb/s per port.

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