Item Description: Type:USB to Rj45 Adapter Interface Type: Micro USB 1.1 male to RJ45 female System support: for Windows 98SE/ME/ 2000/XP/Vista/Linux/ for Win7/8 Switch 10Mbps or 100Mbps network automatically Half/full duplex 10/100Mbps operation Support Full Duplex Flow Control (IEEE802.3X) Support all USB standard commands Support suspend/resume detection logic Compliant to USB interface version 1.0/1.1/2.0 Support 10Mbps and 100Mbps N-way auto-negotiation operation Integrated Fast Ethernet for Mac, physical clip and transceiver in one chip Note: Not compatible with windows 11