Alfa Long-Range Dual-Band MIMO Wireless USB 2.0 Wi-Fi Adapter w/2x 5dBi External Antennas &ndash; 2.4GHz 300Mbps/5GHz 867Mbps &ndash; 802.11a/b/g/n Amazing 300Mbps Data Transfer Speeds are Perfect for Heavy Media/Streaming Wireless Security Standards Include WEP 64-Bit, WEP 128-Bit, WPA-PSK, WPA2-PSK Dual-Band (2.4GHz/5GHz) 5dBi Removable Antennas Guarantee Reliable Access Functions Seamlessly with Windows XP, Vista, 7, 8/8.1; Mac 10.5 or Later; & Linux Supported Wireless Standards Include 802.11a, 802.11b, 802.11g, and 802.11n