Ubiquiti Networks SR71-USB WLAN USB 802.11a/b/g/n MIMO

Ubiquiti SR71-USB Hi-Power 11n USB Radio with External Antenna Connectors, up to 300Mbps, Indoor Range over 300meters/ Outdoor Range over 10km, Dual Frequency.
Ubiquiti SR71-USB World's First Hi-Power 11n USB Radio External Antenna
Indoor Range (Antenna Dependent): over 150m
Outdoor Range (Antenna Dependent): over 50km
Chipset: Atheros AR9160 with DFS SUPPORT