200mW Output Mini Wireless G Pen Drive WiFi Network Adapter 23dBm Built-in High-Power Antenna 3x Gain 3x Distance Transmitter Power: 22dBm 1dBm (High-powered for better reception and transmission) Operating Range: Up to 500M depending on surrounding environment Operating System: Windows98SE ME 2000 XP SP2 x64 Vista MAC (V10.3 an dV10.4) Linux Kernel V2.6.6 and after Standard: IEEE 802.11b/g Receive Sensitivity:11Mbps: &lt;-82dBm @8%PER. 54Mbps: &lt;-70dBm @8%PER