PLANEX GN-1200TW2 10/100/1000 Mbps PCI Gigabit Ethernet Adapter Desinged in Japan One RJ-45 connector supports 1000Mbps, 100Mbps or 10Mbps network speed and Auto-MDI/MSI-X Plug-and-Play installation-auto-setup IRQ and I/O address Supports 32-bit 66/33MHz PCI Local Bus Master Version 2.3/2.2/2.1 Supports Wake on LAN power management function Supports IEEE 802.3x full duplex flow control