Linksys Instant Gigabit EG1032 Network Adapter PCI - 1 x RJ-45 - 10/100/1000Base-T - Internal Connect to gigabit networks with ultra-solid hard-wire stability at speeds up to 1000 Mbps Automatically adjusts to full or half duplex at 10/100/1000 Mbps Wake-On-LAN and plug-and-play Compatible Runs with virtually all major network operating systems Bus mastering architecture supports 1000Mbps speeds