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Green PCIe card with two SFP+ cages and a low-profile bracket

Intel

Intel X520-DA2 10G PCIe Dual Port SFP+ network card

SKU CH-5P0C-JNMCW MPN X520-DA2

Dual-port 10 Gbps SFP+ adapter on a PCIe 2.0 x8 interface with Intel driver support for Windows, Linux, VMware ESXi and FreeBSD

  • Rated speed10 Gbit/s
  • Interface typePCI-Express
  • Supported standardsIEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
  • Connection types2 x SFP+
  • Bus interfacePCI Express 2.0 x8
  • DriversIntel provides drivers for Windows, Linux, VMware ESXi, and
  • Dual 10 Gbps ports double server bandwidth
  • PCIe 2.0 x8 interface keeps latency low
  • Two SFP+ cages accept fibre or copper modules
  • Intel drivers cover Windows, Linux, ESXi and FreeBSD
  • Low-profile bracket fits 1U and slim chassis

Dual-port 10 Gbps server adapter

The Intel X520-DA2 adds two 10 Gbps Ethernet connections through a single PCI Express 2.0 x8 slot. It targets administrators upgrading rack-mount or workstation hosts that need high-throughput links without occupying multiple expansion slots. The card ships with a low-profile bracket for space-constrained chassis.

Passive cooling and modest power draw

No onboard fan means silent operation inside server racks or quiet workstations. The adapter draws power directly from the PCIe bus, keeping cabling simple and total system heat load low. Driver support spans Windows, Linux, VMware ESXi and FreeBSD for broad OS compatibility.

SFP+ cages and low-profile flexibility

Two SFP+ cages accept a variety of direct-attach copper or fibre transceivers, letting you choose reach and media per link. The included low-profile bracket enables installation in 1 U or slim tower cases where full-height cards will not fit. Standard dimensions of 6.6 in × 2.7 in × 0.7 in ensure predictable clearance.

How it compares

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

Price $46.99
Cheaper than about 69% 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 standardsIEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
Ports & slots
Interface typePCI-Express
Connection types2 x SFP+
Bus interfacePCI Express 2.0 x8
Size & build
Product dimensions6.6 in × 2.7 in × 0.7 in
Product weight0.5 lb (0.23 kg)
In the box
In the boxIntel X520-DA2 Dual-Port 10Gb Ethernet Network Adapter
Low-profile bracket
More details
DriversIntel provides drivers for Windows, Linux, VMware ESXi, and FreeBSD operating systems.

Questions about this item

How do I install the Intel X520-DA2 in a PCIe 2.0 x8 slot and which bracket mistake should I avoid?

Insert the card into a PCIe 2.0 x8 slot, secure it, then attach the SFP+ modules; the error is forgetting to swap the full-height bracket for the included low-profile bracket when the chassis requires it.

What maintenance or replacement will the Intel X520-DA2 need over time?

The adapter itself has no moving parts or scheduled service; only the SFP+ transceivers or cables may need replacement if a link fails or you change fibre type.

What limit appears first when both 10 Gbps ports run continuously on the Intel X520-DA2?

The PCI Express 2.0 x8 interface provides enough bandwidth for dual 10 Gbps line-rate traffic, so the practical ceiling is the 10 Gbps port speed itself.

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