1.IEEE802.11b/g 2.usb 2.0 mini USB 3.antenna connetor:SMA 4.LED:link/active ... ,ME,2000,XP,Vista,Linux,Mac specificationwireless standards:IEEE802.11b/g USB2.0 standard(also compltible with USb1.1)Interface: ... ,WPA2Support Data Rate: 54Mbps High Speed Transfer Rate For 802.11gLED: Link/ActiveOperating System Support:Windows 98SE,ME,2000 ... °C~+70°C storage Temp: -40°C~+80°C 802.11b/g USB Wireless Adapter