What's in the box:

MT7601 USB Receiver Mini Wireless Adapter 150MBPS 2.4GHZ 802.11N 150 Network LAN with Driving Card Replacement for Apple Macbook Pro Air (Black)

Features:
High-Speed USB 2.0.
A key encryption to supports WPS.
Lower delay on game and movie.
150Mbps wireless transmission rate.
Maximum close to the wired network.
Complies with IEEE 802.11n, IEEE 802.11g, IEEE 802.11b standards.
Support Operating System: Windows 2000, XP, Vista, Win7 8, Linux, MAC and so on.
Transmission Distance: Indoor up to 100m, outdoor up to 300m (it is limited in an environment).
Supports 64/128-bit WEP, WPA, WPA2 encryption methods and 802.1 x security authentication standards.

Specifications:
Peak Throughput:150Mbps
Antenna Type: Integrated Antenna
Operating Temperature: 0C - 40C
Storage Temperature: -20C - 75C
Storage Humidity: 5% - 95% RH
Operating Humidity: 10% - 90% RH
Host Interface: High speed USB2.0
Wireless Standards:IEEE 802.11n, IEEE 802.11g IEEE 802.11b
Frequency Band:2.4GHz ISM (Industrial Scientific Medical) Band
OperatingSystem: Windows2000,XP,Vista,Win7,Linux,MAC, OS, X.
Data Security 64/128-bit WEP WPA, WPA-PSK, WPA2, WPA2-PSK, TKIP/AES
Package weight: 23g
Item size: 2*0.5cm/0.8*0.2in
Package size: 14*11cm/5.5*4.3in

Package included:
1 x USB WiFi Wireless Adapter
1 x Driving CD