The USB 3.0 Ethernet Adapter allows user's computer instantly connect to a 10/100/1000Mbpsnetwork through an existing USB port. No need to purchase an extra Gigabit network card and share a PCI or cardbus slot. Withcompliance with USB3.0 specification， this adapter ensures true 10/100/1000Mbps networkspeed without any compromue. Besides， compact and bus-powered design means external power isnot required. Features:Interface: USB 3.0 to computer side ， RJ45 to network cableHigh speed data transfer rate via USB3.0 PortPowered by USB port， no external power adapter requiredHalf / full duplex 10/100/1000Mbps operation self-adapting 10Mbps，100Mbps or 1000Mbpsnetwork adapterCompliant to USB interface version 1.0/1.1/2.0/3.0Support IEEE802.3AZ (Energy Efficient Ethernet)Support Green EthernetSupport WOL(Wake-on-LAN)Support win XP/7/8/Vista/Mac