?Features: Atheros industrial grade main chip， support 802.11b/g/n. Wireless transfer rate is up to 150mbps with 5 dBi external antenna. It can be worked with laptops， notebooks and PC desktop computer as well. Specifications: Chipset? Atheros?AR9271 Standard IEEE?802.11g， IEEE?802.11b， CSMA/CA?with?ACK used?with?IEEE?802.11n(draft?2.0) wireless?technology Interface USB?2.0 Frequency? 2.4~2.4835GHz Wireless?speed 11g:?6/9/12/18/24/36/48/54Mbps (Dynamic) 11b:?1/2/5.5/11Mbps(Dynamic) 11n: 150Mbps Working?channel? 1~14 Data?modulation 11g:?OFDM 11g:?OFDM 11n:?OFDM?with?PSK， BPSK， 16-QAM， 64-QAM Power 75dbm Gain 5dBi?External?antenna Encryption 64/128/152?digit?WEP?encryption， WPA/WPA-PSK， WPA2/WPA2-PSK?Encryption Working?environment Storage?temperature:?-20?to?70?Celsius Working?Humidity:?10%?to?90%RH?(non-condensing) Storage?Humidity:?5%?to?90%RH?(non-condensing) Operation?system Windows?2000/XP/Vista/WIN?7/LINUX/Mac， etc. Range Approx. 100m (Theoretical?Value) Product?size 6.4 * 2.6 * 1.1cm / 2.5 * 1.0 * 0.4in (wireless?adapter); 5.0 * 1.0cm / 2.0 * 0.4in (antenna) Product?weight 22g / 0.8oz Package size 19.5 * 10 * 2.7cm / 7.7 * 3.9 * 1.1in Package weight 60g / 2.1oz Package List: 1 * Wifi Adapter