... 1000mW high power This is an ALFA 802.11g wireless USB adapter. The adapter is come with an RP-SMA antenna connector ... for greater flexibilityAlso compatible with USB 1.1 desktop and notebook computersPlug-and-Play Compatible with windows 98SE, 2000, Millennium, ... WIDEMAC, SKYLINK, TIANHAO, BLUEWAY on the market. 1000mW Alfa Network Adapter/ Alfa AWUS036H Network Card/ Alfa Wireless Network Adapter