PCI Express 10/100 Dual Profile Ethernet Card - "This PCI Express 10/100 Dual Profile Ethernet Card provides a simple way to connect a PCI Express enabled server or workstation to a 10/100 Ethernet network for data throughput speeds of up to 2.5Gbps. The PEX100S 10/100 Ethernet Card offers a broad range of features and functions including support for both Full and Half Duplex operation as well as Wake On LAN (WOL) Power Management. PEX100S is compatible with most mATX (Slimline) and ATX system form factors and features Auto MDI/MDIX automatic configuration simplifying installation and configuration."