Alfa AWUS036H Upgraded to 1000mW 1W 802.11b/g High Gain USB Wireless Long-Rang WiFi network Adapter with 5dBi Rubber Antenna and a 7dBi Panel Antenna - for Wardriving & Range ExtensionStrongest on the Market Includes a 4 inch 5 DdBi Screw-On Swivel Rubber Antenna and a 7dBi PAnel Antenna Includes driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7, Linux (2.4.x/2.6.x), Mac (MacOS 10.3 - 10.5) For MAC OS 10.6.7 and later version, we suggest AWUS036NHR, AWUS036NH, AWUS036NEH, AWUS051NH. Plug-and-Play Compatible with windows 98SE, 2000, Millennium, XP and Linux High security 64/128/256bit WEP Encryption, TKIP, 802.1X support, Wi-Fi Protected Access - WPA, WPA-PSK, WPA II Compact size for greater flexibility