Controller Adapter 10G SFP PCIe Intel X520 Hardware interface : Ethernet, PCI Compatible devices : Desktop Data link protocol : Ethernet Data transfer rate : 100 Megabits Per Second Expert Features 【10Gbps Network】 1 Port 10 Gigabit SFP+ Port with Intel X520 82599 chipset, compatible 1G/100/10Mbps, 1* SFP+ slots for SFP+ SR, SFP+ LR modules and direct attach SFP+ cables *default without module* 【PCIe Slot x8】 PCI Express 2.0(5.0GT/S) bus, compatible for PCIe slot X8,X16, default with standard bracket, also include low profile bracket, support multiple installation such as PC, server, workstation, NAS, etc. **not for PCI slot** 【Multiple OS】 Support Windows 7/8/10, Server 2003,2008, Linux, FreeBSD, VMware ESX, freely driver download, CD-ROM , Intel official website can download the driver easily. 【Network Feature】 IEEE802.3(1000BASE-SX,1000BASE-LX,1000BASE-ZX), LC, Intel Virtualization Technology for connectivity, IPSEC/LinkSec security 【Easy to Use】 Select the appropriate brackets according to the chassis size, insert into the PCIe slots, install the driver, connect to the network, the LEDs show the link status and rate. Any questions, please contact our support email, we will provide timely service.