wireless wifi usb adapter, Mini portable USB 2.0 design. This 500Mbps portable mini wireless USB adapter allows you to connect PC to a wireless network and access high-speed Internet connection. It's ideal for internet surfing and on-line gaming. Wireless N speed up to 500Mbps, 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 300Mbps. 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,LINUX operating system. Supports wireless roaming technology for high-efficient wireless connections. Seamlessly compatible with 802.11b/g/n devices. It is a 500Mbps most fashionable mini USB wireless network adapter, smallest invisible super mini outside design, small and exquisite, it won't take much room to use and it is very convenient to take along. Range: Indoors: 50-100m (Theoretical Value) Outdoors: 100-200m (Theoretical Value It built in smart antenna, can sharply strengthen the wireless signals receiving ability, wireless stability and signals covering range. Its adopts the newest network transmission technology IEEE802.11N and Green WLAN, transmission rate up to 450Mbps. Compare with the traditional 54 Mbps 11G products, it has more wireless bandwidth, making the LAN data transmission higher efficiency, it can reduce the network delay, make the voice and video chat and Video-On-Demand more fluent. At the same time, it can support wireless roaming, guarantee the wireless connecting. CF-WU810N also adopts the newest International wireless CCA channel detecting technology,