RJ45 Female to Micro USB 2.0 5 Pin.Compliant to USB interface version 1.0/1.1/2.0.Support Full Duplex Flow Control (IEEE802.3X).Ethernet support 10/100 Mbps high speed transmission.Support Windows 98SE, 2000, ME, XP, 7, VISTA, Linux.This micro USB 5 pin ethernet adapter is used for Tablet PC connection.