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Green PCB network card with two SFP+ cages and low-profile bracket

Intel

Intel E10G42BTDABLK dual-port 10GbE network card PCIe 2.0 x8 low-profile

SKU CH-PYAT-4MCAY MPN E10G42BTDABLK

Dual-port 10GbE adapter with two SFP+ slots on a PCIe 2.0 x8 low-profile card

  • Rated speed10 Gbit/s
  • Interface typePCI-Express
  • Supported standardsIEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
  • Connection types2 × SFP+ ports (for fiber or DAC)
  • Bus interfacePCI Express 2.0 x8
  • DriversIntel provides drivers for Windows, Linux, VMware ESXi, and
  • Dual 10 Gbps SFP+ ports deliver high-throughput server connectivity
  • PCI Express 2.0 x8 interface provides eight-lane bandwidth for sustained 10 GbE performance
  • Low-profile bracket fits 1U and space-constrained chassis
  • Intel 82599ES controller with driver support for Windows, Linux, VMware ESXi and FreeBSD
  • IEEE 802.3ae, 802.3ap, 802.3an and 802.3ad compliance ensures interoperable 10 Gigabit Ethernet operation

Dual-port 10GbE adapter for servers

The Intel X520-DA2 plugs into a PCI Express 2.0 x8 slot and presents two SFP+ cages for fiber or direct-attach copper. It targets administrators who need 10Gbps Ethernet links in a low-profile form factor. Driver support covers Windows Server releases from 2003 through 2012 R2, plus Linux 3.x kernels, VMware ESXi and FreeBSD.

Thermals and power in normal use

The card draws its power entirely from the PCIe bus and relies on chassis airflow across the printed circuit board. No active cooling is fitted, so acoustic output is limited to the system fans. The low-profile bracket keeps the assembly within a 0.7 in height envelope for dense rack installations.

Brackets and software enable deployment

A low-profile bracket ships in the box so the adapter fits 1U and blade chassis without extra parts. Intel supplies drivers for the listed operating systems, allowing the 82599ES controller to handle VLAN tagging, teaming and jumbo frames. No transceivers or cables are included, so buyers must source SFP+ modules or DACs separately.

How it compares

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

Price $335.99
Pricier than about 80% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameIntel
Model nameE10G42BTDABLK
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 × SFP+ ports (for fiber or DAC)
Bus interfacePCI Express 2.0 x8
Size & build
Product dimensions6.6 in × 2.7 in × 0.7 in
Shipping weight0.14 kg
Package size201 × 135 × 25 mm
Compatibility
Supported platformsWindows Server 2012 R2, Windows Server 2012, Windows 8, Windows Server 2008 R2, Windows 7, Windows Server 2008 SP2, Windows Vista SP2, Windows Server 2003 R2, Windows Server 2003 SP2, Linux Stable Kernel version 3.x, 2.6,x, Red Hat Enterprise Linux 5, 6, SUSE Linux Enterprise Server 10, 11, FreeBSD 9, ,VMware ESX / ESX
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 fit the Intel E10G42BTDABLK into a low-profile chassis and which bracket do I use?

The card ships with a low-profile bracket already fitted; remove the full-height bracket if present, align the PCIe 2.0 x8 edge connector with the slot, and secure the bracket screw before attaching SFP+ modules.

What ongoing maintenance does the X520-DA2 adapter require after installation?

No scheduled maintenance is needed; keep the SFP+ cages dust-free, verify driver updates for Windows, Linux, ESXi or FreeBSD periodically, and replace only if a port or transceiver fails.

What limits sustained throughput when both 10 Gbps ports run continuously?

The PCIe 2.0 x8 host interface provides the ceiling for combined traffic; actual sustained rate depends on the host platform and workload, not on the adapter itself.

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