Hardware Features Standards IEEE802.11b IEEE802.11g IEEE802.11n Band 2.4Ghz Wireless Rate 150Mbps Interface & Speed USB 2.0 LED Link/Act Antenna Internal 3dBi Omni-directional non-detachable antenna *1 Dimensions (LxWxH,mm) 21*15*7.7mm Wireless Features Basic Features Channel 11 channels Channel Width 20Mhz,40Mhz Transmit Power 11b: 16.5dbm?Transmit Power?19dbm, 11g: 12.5dbm?Transmit Power?17.5dbm, 11n: 12.5dbm?Transmit Power?17.5dbm, Wireless Security WPA-PSK, WPA2-PSK, WEP, WPA, WPA2 Others Operating Enviroment Operating Temperature 0? ~ 40? Storage Temperature -40oC ~ 70oC Operating Humidity 10% ~ 90% RH non-condensing Storage Humidity 5%~95% RH non-condensing Minimum System Requirement Computer with: CD Drive 733MHz CPU or faster 64MB Memory or higher Windows 2000 OS or higher Package Contents W311MI 150Mbps Ultimate Mini Wireless USB Adapter CD-ROM Certificates FCC,RoHS, CE