Alfa Long-Range Dual-Band MIMO Wireless USB Wi-Fi Adapter with a 5dBi Removable External Antenna 150Mbps Data Transfer Speeds are Perfect for 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