Alfa AWUS036NHR High-Gain 2000mw 2W 802.11 B/G/N Wireless USB Network Adaptor with 5dBi/9dBi Antenna 150Mbps 2.4 GHz Includes a convenient Utility for scanning available networks and saving preferred networks that users usually connect with Compatible with IEEE 802.11b, 802.11b and 802.11bn wireless standards Includes a 4-inch 5 dBi and a 14-inch 9dBi Screw-On Swivel Rubber Includes driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7 - Mac (10.4.x/10.5.x/10.6.x) Power PC& PC High security Wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES4n, 802.1X support, WPA-PSK, WPA II-PSK, Cisco CCX support, WAPI-PSK, WAPI-CERT