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Green PCIe network card with dual SFP+ ports and two brackets

Intel

Intel X520-SR2 10GbE Dual SFP+ Network Adapter

SKU CH-Q8F1-FJVVB MPN X520-SR2

Adds two 10 GbE SFP+ ports to servers and workstations through a PCIe 2.0 x8 slot

  • Compatible ManufacturerUniversal
  • Compatible ModelsServers and Workstations with PCIe Slot
  • ColorGreen
  • Dual SFP+ ports deliver 10 Gbps fiber connectivity
  • PCIe 2.0 x8 interface provides high throughput for servers
  • Advanced virtualization support optimises cloud and data-center workloads
  • Low-latency design suits high-performance enterprise networking
  • Includes full-height and low-profile brackets for flexible installation

Dual SFP+ 10GbE Adapter for Servers

The Intel X520-SR2 is a dual-port network interface card built for servers and workstations with a PCIe slot. It provides two SFP+ cages for short-range optical modules, delivering 10Gbps Ethernet connectivity. The card includes both full-height and low-profile brackets for flexible installation in standard or space-constrained chassis.

Upgrading from Single-Port or Copper Links

This adapter replaces a single 10GbE port or copper-based connections where fiber reach or port density is required. The jump is worth it when workloads demand dual independent 10Gbps links for redundancy, load balancing, or separate traffic streams. It also suits migrations from slower Gigabit Ethernet infrastructure to 10GbE fiber backbones.

PCIe 2.0 x8 Bus and SR Optics Limits

The card operates on a PCIe 2.0 x8 interface, capping total bidirectional throughput to the bandwidth of that generation. Short-range optics restrict link distance to the limits of multimode fiber, typically hundreds of metres. Buyers needing longer reaches, higher lane counts, or newer bus generations cannot meet those needs with this adapter.

Highlights

  • Dual SFP+ ports deliver 10 Gbps fiber connectivity
  • PCIe 2.0 x8 interface provides high throughput for servers
  • Advanced virtualization support optimises cloud and data-center workloads
  • Low-latency design suits high-performance enterprise networking
  • Includes full-height and low-profile brackets for flexible installation

Specifications

BrandIntel
ModelX520-SR2
Part NumberE10G42BFSRBLK
Compatible ManufacturerUniversal
Compatible ModelsServers and Workstations with PCIe Slot
ColorGreen

Questions about this item

Does the Intel X520-SR2 include brackets for both full-height and low-profile server chassis?

Yes, the package includes both full-height and low-profile brackets so the card fits either standard or slim server enclosures.

Which PCIe slot version and lane width does the X520-SR2 require for installation?

The adapter uses a PCIe 2.0 x8 slot; insert it fully until the bracket screws align, as partial seating is the most common install error.

What type of optical modules do the dual SFP+ ports accept for future replacement?

The ports support SR (short-range) SFP+ transceivers; swap modules by releasing the bail latch and inserting a compatible SR optic.

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