X520-SR2 2-Port 10GBase-SR SFP+ PCIEx8 Network Adapter
Network Interface Card - PCI-Express 2.0 x8 Bus - SFP+ Connector(s) - 2-Port - Intel 82599ES Chipset - 10GBase-SR Standard - Low-Profile Form Factor - 2x SFP+ Ports (10Gb) - Compatible with Windows / Linux - Lifetime Depot Carry-In Mfg. Warranty