Real 500mW Realtek Wireless USB Adapter Main Function:chipset : Realtek 8187L (500mW)                                                                 Host interface : USB 2.0/1.1                                               Peak throughput : 54Mbps                                        Antenna : 1x2.4Ghz 5dbi SMA Connector                     Frequency: 2412~2484 mhz                                       Security:  WEP 64/128,WPA,WPA2,WPA-PSK,802.1X                                  Operation system: Windows ME/98SE/2000/XP/Vista;Linux;MAC, Windows 7     Unit size:  85 x 63 x 22 mm; unit weight: 38.5g Specification   Standard IEEE 802.11g/b Interface USB 1.1/ 2.0 Frequency Band 2.400GHz ~ 2.484GHz Radio type IEEE 802.11g: OFDM(64-QAM, 16-QAM, QPSK, BPSK) IEEE 802.11b: DSSS(CCK/DQPSK/DBPSK) Data Rate 802.11g: 54, 48, 36, 24, 18, 12, 9 & 6Mbps 802.11b: 11, 5.5, 2 and 1 Mbps with auto-rate fall back Access Protocol CSMA/CA Number of operation channel 2.412~2.462GHz (Canada, FCC) / 11 Channels 2.412~2.484GHz (Japan, TELEC) / 14 Channels 2.412~2.472GHz (Euro, ETSI) / 13 Channels Security 64/128bit WEP WPA(TKIP with IEEE 802.1x) WPA2(AES with IEEE 802.1x) RF Output Power(Typical) 802.11g: up to 20 ± 1 dBm 802.11b: up to 27 ± 1 dBm Sensitivity -75dBm @ 54 Mbps -87dBm @ 11 Mbps Antenna One detachable 5dbi antenna(SMA connector) Dimension (mm)85 (L) x 63(W) x 22(H) mm(not including antenna) Weight38.5g Operation Temperature 0°C ~ 60°C ambient temperature Storage Temperature -20% ~ 70% ambient temperature Humidity 10% ~ 90% (Non-condensing) Driver support Windows 98SE, ME, 2000, XP, Vista, Linux, MAC Packing and Accessories: Wireless LAN USB Adapter High gain 5dBi Antenna 5ft USB extension cable Driver/Manual CD