Buy on Amazon : http://www.amazon.com/gp/product/B008LA7LQW?tag=catfoodrevi0a-20
POWERLINK Speedy2 Wireless 300Mbps 802.11b/g/n MIMO USB Adapter 28dBm w/Dual High Gain 5dBi
28dBm wDual High Gain 5dBi Dipole Antenna Improving 6X Signal Reception and 3x Speed
2T2R 80211n MIMO Two Transmit and Two Receive path
Up to 300Mbps Wireless 11n data transfer rate
256-bit WEP security WPA WPA-PSK WPA2 PA2-PSK
Windows 2000XPx64Vista78 Mac OSX Linux Kernel 266 and after Support BackTrack 3 4