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Green PCIe circuit board with two SFP+ cages and a silver bracket

Intel

Intel X520-DA2 10Gbps Dual Port SFP+ network card

SKU CH-MWZ1-EV27A MPN X520-DA2

Dual-port 10 Gbps SFP+ adapter on a PCI-Express 2.0 x8 interface using the Intel 82599ES controller

  • Rated speed10 Gbit/s
  • Interface typePCI-Express
  • Supported standardsIEEE802.3
  • Connection types2 x SFP+
  • Dual 10 Gbps ports double throughput for demanding servers
  • PCIe 2.0 x8 lane width fits X8 and X16 slots
  • Intel 82599ES controller offloads processing from the CPU
  • Two SFP+ cages accept multi-mode, single-mode or direct-attach modules
  • IEEE 802.3 compliance ensures interoperability with 10G Ethernet networks

Dual-port 10Gbps SFP+ server adapter

The Intel X520-DA2 is a dual-port network interface card built for servers and workstations that need 10 gigabit Ethernet connectivity. It uses the Intel 82599ES controller and connects through a PCI Express 2.0 x8 slot, compatible with x8 and x16 slots. The card targets IT professionals adding high-speed links to rackmount or tower systems.

Two SFP+ cages for fibre or direct attach

Two SFP+ cages accept 10G multi-mode modules, single-mode modules or direct-attach copper cables, letting you choose the reach and media type per link. Each port runs at 10Gbps line rate under IEEE 802.3 10BASE-SR and 10BASE-LR standards. The x8 5GT/s bus provides enough bandwidth for both ports simultaneously without saturation.

Low-profile bracket fits dense chassis

A low-profile bracket allows installation in 1U and 2U rackmount servers where full-height cards do not fit. The SFP+ cages face the rear bulkhead for clean cable routing in hot-aisle or cold-aisle layouts. No onboard transceivers are included, so you supply the optics or DACs that match your switch ports and distance requirements.

How it compares

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

Price $36.99
Cheaper than about 77% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameIntel
Model nameX520-DA2
Part numberX520-DA2
Performance
Rated speed10 Gbit/s
Connectivity
Supported standardsIEEE802.3
Ports & slots
Interface typePCI-Express
Connection types2 x SFP+

Questions about this item

Will this card run at 10 Gbps in my PCIe 2.0 x8 slot?

The card uses a PCIe 2.0 x8 electrical interface and is compatible with x8 or x16 slots, so it will deliver the full 10 Gbps rate in a PCIe 2.0 x8 slot.

How can I verify both SFP+ ports are linked at 10 Gbps after installation?

Check the adapter LEDs or the OS network status; each port should show a 10 Gbps link when a supported SFP+ module and cable are connected.

Does the box include SFP+ transceivers or cables, or must I buy them separately?

The adapter ships without transceivers or cables; you must purchase compatible SFP+ modules or direct-attach cables separately.

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