Product Detail Supports Gigabit speeds over existing network cable Full duplex speeds (20 Mbps, 200 Mbps, 2000 Mbps) PCI Express x1 1.0a bus interface fits 1, 4, 8 and 16X PCI-E slots Supports auto-negotiation, wake-On-LAN (WOL) support, RPL/PXE boot ROM support Realtek 8168B chipset . The "Intellinet 522533 - Network adapter, PCI Express x1, Ethernet, Fast Ethernet, Gigabit Ethernet - 10Base-T, 1000Base-TX, 100Base-TX, 1000Base-T" is best product for you. We recommended Intellinet 522533 - Network adapter, PCI Express x1, Ethernet, Fast Ethernet, Gigabit Ethernet - 10Base-T, 1000Base-TX, 100Base-TX, 1000Base-T