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Green PCB card with two SFP+ cages and a silver bracket

Intel

Intel X520-DA2 Dual-Port 10 Gbps SFP+ PCIe expansion card

SKU CH-WX14-MVRXM

Dual-port 10 Gbps SFP+ adapter for PCIe x8 slots, supporting fiber or DAC links on Windows, Linux, VMware ESXi and FreeBSD

  • External connectors2 × SFP+ (10Gb fiber or DAC support)
  • Internal portsPCI Express x8 slot
  • Supported standardsIEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
  • Transfer speedUp to 10 Gbit/s per port
  • Supported operating systemsWindows, Linux, VMware ESXi, FreeBSD
  • Product typePCI Express to Ethernet Port Card
  • Dual 10 Gbps SFP+ ports for high-throughput networking
  • PCI Express x8 interface fits desktop and server systems
  • Supports IEEE 802.3ae, 802.3ap, 802.3an and 802.3ad standards
  • Compatible with Windows, Linux, VMware ESXi and FreeBSD
  • Low-profile bracket included for compact chassis builds

Dual-Port 10 Gbps SFP+ Adapter

The Intel X520-DA2 adds two 10 Gbps SFP+ ports to a desktop or server through a PCI Express x8 slot. It supports fiber or direct-attach copper links and runs on Windows, Linux, VMware ESXi and FreeBSD.

Low-Profile Bracket Included

A low-profile bracket ships in the box so the card fits slim chassis where a full-height bracket would not. No external or internal USB or 1394 ports are present on the board.

IEEE 802.3 Standards Limit Cabling

The card implements IEEE 802.3ae, 802.3ap, 802.3an and 802.3ad, so link distance and media type depend on the SFP+ modules chosen. A PCIe x8 or wider slot is required for installation.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $48.99
Pricier than about 70% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameIntel
Product lineX520-DA2
Model nameX520-DA2
Product typePCI Express to Ethernet Port Card
Performance
Transfer speedUp to 10 Gbit/s per port
Connectivity
Supported standardsIEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
Ports & slots
External USB portsNone
Internal USB portsNone
External 1394 portsNone
Internal 1394 portsNone
External connectors2 × SFP+ (10Gb fiber or DAC support)
Internal portsPCI Express x8 slot
Size & build
Product dimensions6.6 in × 2.7 in × 0.7 in
Product weight0.5 lb (0.23 kg)
Compatibility
Supported operating systemsWindows, Linux, VMware ESXi, FreeBSD
Compatible withDesktop and server systems with a PCI Express x8 or higher slot; supports SFP+ 10Gb fiber or DAC connections
In the box
In the boxIntel X520-DA2 Dual-Port 10Gb Ethernet Network Adapter
Low-profile bracket

Questions about this item

Will the SFP+ transceivers or direct-attach cables need periodic replacement on the X520-DA2?

The adapter has no moving parts; only the SFP+ modules or DAC cables inserted into its two ports may wear over time and can be swapped individually.

What limits sustained throughput first on this dual-port 10 Gbps card?

Each port tops out at 10 Gbps, so the PCIe x8 host interface and the SFP+ link speed are the first bottlenecks under continuous load.

How much heat and noise does the X520-DA2 produce when running all day?

The low-profile card uses a passive heatsink and draws power from the PCI Express slot, so it adds no fan noise and minimal heat to the chassis.

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