You can download the drivers file through this link : 

//www.mediatek.com/products/broadbandWifi/rt3070

Description:

    Mini portable USB 2.0 design   

    Wireless N speed up to 150Mbps, ideal for internet surfing and on-line gaming   

    Complies with IEEE 802.11n (Draft 2.0), IEEE 802.11g, IEEE 802.11b standards   

    Provides two work modes: Infrastructure and Ad-Hoc   

    MIMO technology makes wireless transmission rates up to 150Mbps   

    CCA technology enhances your signal stablility by automatically avoiding channel conflicts   

    Quick secure setup, complies with WPS for worry free wireless security   

    Wireless security encryption easily at a push Of QSS button   

    Supports 64/128-bit WEP, as well as WPA/WPA2 and WPA-PSK/WPA2-PSK encryptions   

    Supports WIN2K, XP, VISTA, WIN7, MAC, LINUX operating system   

    Supports wireless roaming technology for high-efficient wireless connections   

    Seamlessly compatible with 802.11b/g/n devices    

Specifications:

    Chipset Ralink: MT-7601   

    Wireless Standards:IEEE 802.11n, IEEE 802.11g, IEEE 802.11b   

    Frequency Band:2.4GHz ISM (Industrial Scientific Medical) Band   

    Peak Throughput:150Mbps   

    Channel:1--14 channels (Universal Domain Selection)   

    Data Security 16/128-bit WEP Encryption WPA, WPA-PSK, WPA2, WPA2-PSK, TKIP/AES   

    Support Operating System: Windows 2000, XP, Vista, Win7, Linux, MAC   

    Host Interface:High speed USB2.0/1.1 Interface   

    Antenna Gain:2dBi   

    Operating Temperature: 0oC - 40oC   

    Storage Temperature: -20oC - 75oC    

    Operating Humidity: 10% - 90% RH,  (non condensing)   

    Storage Humidity: 5% - 95% RH, (noncondensing)   

    Package Size:14.8 * 9.8 * 1.8cm   

    Packed Weight:36g   

Package included:

1 x USB Wireless LAN Adapter with  Antenna

No retail box will be included, but we'll pack well before shipping.