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Green dual-port 10GbE network adapter with two SFP+ cages

Intel

Intel X520-DA2 Dual-Port 10GbE SFP+ Adapter

SKU CH-FZ6C-HJFY2

Dual-port 10 Gigabit Ethernet adapter with two SFP+ ports for fiber or direct-attach cables

  • Connection types2 × SFP+ ports (for fiber or DAC)
  • Product typeDual-Port 10 Gigabit Ethernet Network Adapter
  • Overall length6.6 in (16.8 cm)
  • Product colorGreen
  • Product dimensions6.6 in × 2.7 in × 0.7 in
  • Product weight0.5 lb (0.23 kg)
  • Dual 10 GbE ports deliver high-speed server connectivity
  • 6 in low-profile length fits dense rack chassis
  • Two SFP+ cages accept fiber or direct-attach copper
  • Green PCB distinguishes Intel X520-DA2 at a glance
  • Light 0.5 lb weight eases installation in tight spaces

Dual-Port 10 Gigabit Adapter

The Intel X520-DA2 is a dual-port 10 Gigabit Ethernet network adapter built for servers and workstations that need high-throughput wired connectivity. It installs in a standard PCI Express slot and presents two SFP+ cages for fibre or direct-attach copper links. The board measures 6.6 in by 2.7 in by 0.7 in and weighs 0.5 lb, fitting typical low-profile brackets. This card targets administrators who want reliable 10 GbE links without proprietary form factors.

Thermals Noise Power

The adapter uses a passive heatsink and draws power solely from the PCI Express slot, so it adds no fan noise to the chassis. Typical power draw stays within the slot specification, leaving headroom for other expansion cards. Airflow across the heatsink is sufficient for continuous line-rate traffic in a ventilated rack or tower. No external power connector is required, simplifying cable routing in dense enclosures.

Build Connectors Mounting

The green PCB carries two SFP+ ports that accept standard optics or direct-attach cables up to the length supported by the chosen module. A full-height bracket is included, and the 6.6 in length clears most server backplanes without interfering with adjacent slots. The card edges are gold-plated for reliable contact, and the mounting holes align with industry-standard retention brackets. Installers should verify SFP+ module compatibility before deployment.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $47.99
Typical for this category: the median of 3,838 items is $41.99.

Specifications

Product
Brand nameIntel
Model nameX520-DA2
Part numberX520-DA2
Product typeDual-Port 10 Gigabit Ethernet Network Adapter
Product colorGreen
Ports & slots
Connection types2 × SFP+ ports (for fiber or DAC)
Size & build
Overall length6.6 in (16.8 cm)
Product dimensions6.6 in × 2.7 in × 0.7 in
Product weight0.5 lb (0.23 kg)

Questions about this item

How do I install the X520-DA2 and which step is most often missed?

Insert the 6.6 in card into an x8 PCIe slot, secure the bracket, then fit SFP+ modules into both ports before cabling — the step most often missed is inserting the optics first.

What maintenance or replacement will the X520-DA2 need later?

The adapter itself has no moving parts; only the SFP+ transceivers or direct-attach cables plugged into its two ports may need replacement if a link fails.

What limit appears first on the X520-DA2 under sustained 10 GbE load?

The dual-port design caps aggregate throughput at 20 Gbps, so sustained line-rate traffic on both SFP+ ports simultaneously hits the PCIe bus ceiling first.

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