Features:brand new and high qualityRTL8111E Good compatibility chipset, 1Gbps PCI-E high speed1x RJ-45 interface 10/100/1000Mbps ethernet interfaceSupports for Windows XP/Vista/7 32/64-bit, Server 2003 32/64-bit, LinuxSuitable for tablet PC, notebook computer, RJ45 interface..High strength anti deformation stop, durable and long service life. Specifications:Speed: 1GbpsData Transfer Rate:10/100/1000 MbpsChipset:Realtek RTL8111EExternal Ports:1x RJ-45 Ethernet PortHost Interface:PCI for Express (PCI-E)Size: approx 12x8cm/4.72x3.15inApplicable Network Type: EthernetPort Type PCI Supports for Windows XP/for Vista/7/8/2003/2000/ for Linux Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank youPlease allow 1-3mm measuring deviation due to manual measurement. Package includes:1PC x PCI-E Gigabite Network card