Features:

Connects at a full 300Mbps high speed transfer rate for 802.11n
Detachable antenna with RP-SMA connector - upgradeable to a higher power
antenna for a wider wireless coverage
High output power up to 4200mW for extend the coverage range up to 5x than standard USB adapters
Operating distance of up to 1000 meters in free space
Plug & Play compatible with all computers
Software AP function, support PSP, X-Link, BT3
High security 64/128/bit WEP Encryption, WPA-PSK, WPA2PSK, WPA-PSK/WPA2PSK

Specifications:

Chipset: Ralink 3070
Wireless standard: IEEE 802.11b/g/n
I/O: mini USB 2.0
Frequency: 2.412GHz-2.484GHz unlicensed ISM band
Data rate: IEEE 802.11b: 1,2,5.5,11Mbps; IEEE 802.11g: 6,9,12,18,24,36,48,54Mbps; IEEE 802.11n: 150,300Mbps
Modulation: BPSK, QPSK, CCK and OFDM
Antenna connector: SMA
Antenna type: dual 9dBi RP SMA dipole omnidirectional antenna
Antenna length: 36cm
Sensitivity: -65dBm at 130Mbps, -74dBm at 54Mbps, -84dBm at 11Mbps
Security: WEP 64/128, 802.1x support, Wi-Fi protected access (WPA), WPA-PSK
Output power: 4200mW (42dBm +/- 2dBm)
Operating range: up to 1000m in open environment
Operating system support: Windows 98se, ME, 2000, XP, Vista, 7, Linux, Mac OS X
Operating temperature: -20C-70C
Storage temperature: -40C-80C
Weight: 300g
Color: black

Package included:

1 x WiFi adapter
2 x Omnidirectional antenna
1 x USB cable
1 x Driver CD
1 x Manual