Techincal Parameters: System Interface Type PCIe v 2.0 ( 5.0GT /s) Connector & Cable Medium SFP+ Direct Attach Copper/SFP+ Transceivers( 10G SR/10G LR) Cabling Type SFP+ Direct Attached/LC Fiber Cable Ethernet Controller Intel Ethernet Controller 82599 Intelligent Offloads Yes QoS and Traffic Management Yes Flexible Port Partitioning Yes VMDq Yes PCI-SIG* SR-IOV Capable Yes Supported Operating Systems Windows Server 2012 R2*/ 2012*/ 2008 R2*/ 2008* SP2/ 2003 R2*/ 2003* SP2, Windows 7*/ Windows 8*, Windows Vista* SP2; Linux* Stable Kernel version 3. x, 2.6, x, Red Hat Enterprise Linux* 5, 6, SUSE Linux Enterprise Server* 10, 11 VMware ESX/ESXi* (If you are not sure about the compatibility, please feel free to reach out to us