Comfast&reg; 300Mbps, 802.11n Wireless-N Wi-Fi USB Network Adapter with Dual Antenna. Supported on Windows XP/Vista/7/8, MAC, Linux Handles the most demanding of applications suitable for the home or small business. Dual detachable antennas of 6dBi gain each enable you to take full advantage of speed and coverage at 300Mbps! 6 times faster and 3 times more coverage area compared to 802.11b standard. Designed to conveniently be docked to your system with the accompanying USB cable. High operating range reaching from 100-200m indoors and 200-500m outdoors.