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Green rectangular circuit board with two SFP+ cages and a gold PCI-E x8 edge connector

DELL

DELL X520-DA2 Dual Port 10Gb/s PCI-E 2.0 x8 Network Adapter VFVGR

SKU CH-VKQ9-RWB9W

Adds two 10 Gbps SFP+ ports to a desktop or server through a PCI-E 2.0 x8 slot, supporting fiber or direct-attach cables

  • 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-speed fiber or DAC links
  • PCI Express 2.0 x8 interface fits desktop and server slots
  • Supports Windows, Linux, VMware ESXi and FreeBSD out of the box
  • Low-profile bracket included for compact chassis installations
  • IEEE 802.3ae, 802.3ap, 802.3an and 802.3ad standards compliance

Dual-Port 10GbE SFP+ Adapter

The Dell X520-DA2 adds two 10Gbps SFP+ ports to a desktop or server through a PCI Express 2.0 x8 slot. It supports fiber or direct-attach copper cabling and works with Windows, Linux, VMware ESXi and FreeBSD. The low-profile bracket is included for compact chassis installations.

Fits x8 Slots, Not x1

This card suits administrators upgrading rackmount or tower servers that have an open x8 or larger PCIe slot and need dual 10GbE links. Builders with only x1 or x4 slots cannot use the adapter at full bandwidth, and systems lacking SFP+ transceivers or DAC cables will need to source those separately.

Two Ports at Line Rate

Each SFP+ port delivers up to 10Gbps, so the adapter comfortably handles dual 10GbE uplinks, iSCSI storage traffic or high-throughput virtualisation clusters. The PCIe 2.0 x8 interface provides enough bandwidth for both ports simultaneously, but total throughput cannot exceed the host bus limit.

How it compares

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

Price $45.99
Pricier than about 68% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameDell
Product lineX520-DA2
Model nameX520-DA2
Part numberX520-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

Do I need an available PCI Express 2.0 x8 slot or wider on my motherboard for this adapter?

Yes, the card installs in a PCI Express 2.0 x8 or higher slot in a desktop or server system.

Will my existing SFP+ direct-attach cables or 10 Gb fibre modules work with the two ports on this card?

The two SFP+ ports accept standard 10 Gb fibre transceivers or DAC cables you already use.

How can I confirm each port is running at 10 Gbps after I install the adapter?

Check the link speed in your OS network settings or run a throughput test; both ports should report 10 Gbps when connected.

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