Sedna PCIE 10/100 Ethernet Adapter (LAN Card) with Low Profile Bracket (Realtek Chipset) Single-Lane (x1) PCI-Express with transfer rate 2.5Gb/s Full Duplex channel Compliant with PCI-Express Revision 1.0a Supports Full Duplex Flow Control (IEEE 802.3x) Crossover Detection and Auto Correction Operation Driver supported MS Windows 98SE/ME/2000/XP/Server 2003/XP 64-bit /Vista/ Win 7 / Win 8/ Win 8.1