SIENOC Gigabit Ethernet LAN PCI-E Express Network Desktop Controller Card 10/100/1000M RTL 8111C Chipset 10/100/1000 Base-T Single-lane(x1) PCI-Express with transfer rate 2.5Gb/s Full Duplex channel RTL 8111C Chipset 10/100/1000 Base-T Networking with Auto-Negotiation IEEE 802.3,802.3ab,802.3u, 802.3x, 802.1Q, VLAN Windows 2000 Win 7 Win 8