Comfast Wireless 720IND 150Mbps N Wi-Fi USB Network Adapter 802.11n with Dual 6dBi Antennas, Supported on Windows XP/Vista/7/8, MAC, Linux Handles the most demanding of applications suitable for the home or small business 6 times faster an 3 times more coverage area compared to 802.11b standard Designed to conveniently be docked to your system with the included USB cable High operating range reaching from 100-200m indoors and 200-500m outdoors Dual detachable antennas of 6dBi gain each enable you to take full advantage of speed and coverage