EP-N1557 300Mbps Wireless WiFi USB Network 802.11n/g/b LAN Adapter Card Auto adapts to WiFi frequencies for a better connection Supports soft Access Point Mode for internet sharing Advanced WiFi Encryption WPA2,WPA and legacy WEP Ultra Ccompact design fot permanent USB conection Ideal for Windows7TMand eatlier,MAC OSXTM and LinuxTM