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), * Also 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