Feature:1. PCI-Express1-Lane(x1) interface has good compatibility, which can be plugged into 2x, 4x, 8x, 16x slots.2. RTL 8111F high-performance gigabit network controller chip, backward compatible with 10/100 BASE-T Ethernet network, automatically matching 10M/100M/1000M data transmission mode.3. Compatible with existing CAT-5 network cabling.4. Meets EEE8023, 8023u, 8023ab standards.5. Support full duplex network mode (EEE8023x).Specification:Item Type: Network CardMaster Control: RTL8111FSpeed: 10/100/1000MbpsInterface: PCI-ESupported System: For Win8, for Win7/Vista/2000/ME/98sE/ Server2003-2008 32/64-bitBaffle Height: Full Height Baffle.Package List:1 x Network CardNote:If the network card can not be recognized after installation, please download a software for detecting hardware and installing drivers