Semlos Network PCIE Card 10/100/1000Mbps Gigabit Desktop PCI Express Ethernet LAN Network Adapter Single-lane(x1) PCI-Express with transfer rate 2.5Gb/s Full Duplex channel,Compliant with PCI-Express Revision 1.0a PCI Express x1 interface compatible with PCI Express x1 x4 x8 x16 slots Driver supported Windows 98SE/ME2000/XP/Server 2003/XP 64-bit/Vista/Vista 64-bit/Win 7/Win 7 64 bit 1000M Ethernet interface Support 10/100/1000 Base-T Networking with Auto-Negotiation,Compliant with IEEEE 802.3, 802.3ab, 802.3u, 802.3x 802.1Q, VLAN Support Full Duplex Flow Control (IEEEE 802.3x), Automatic Crossover Detection and Correction Supported