Comfast CF-WU825N 300Mbps Mini Wifi Network 802.11g\/b\/n USB Adapter<br>Description:Interface : USB 2.0Data Rate : Up to 300MbpsIt is great for those who want to upgrade older computers to be able to access the internet over a Wireless-n network<br>Specification:<br>          Chipset            Realtek RTL8192CU              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       11n: the highest data rate can reach to 150Mbps    11g: 6\/9\/12\/18\/24\/36\/48\/54Mbps(Dynamic)    11b: 1\/2\/5.5\/11Mbps(Dynamic)                                                                    Working channel       1~13           Data Modulation            11g: OFDM         11n: OFDM with PSK，BPSK，16-QAM，64-QAM              RF power            20dBm(Maximum)              Antenna gain       2dBi  internal smart antenna           Encryption            64\/128\/152 digit WEP encryption，WPA\/WPA-PSK，WPA2\/WPA2-PSK Encryption              LED indicator       Link\/Activity           Working environment            Working temperature: 0 C to 40 C         Storage temperature: -40 C to 70 C         Working Humidity: 10% to 90%RH     Storage Humidity: 5% to 90%RH           Operation system       Windows 2000\/XP\/Vista\/WIN 7\/WIN 8\/8.1 \/LINUX etc.           Range            Indoors:  50-100m (Theoretical Value)         Outdoors: 100-200m ( Theoretical Value)      <br><br>Package: 1X Comfast CF-WU825N 300Mbps Mini Wifi Network 802.11g\/b\/n USB Adapter1X user manual