TP-LINK 54Mbps Wireless USB Adapter . Connectivity technology: Wireless, Host interface: USB, Interface: USB. Data transfer rate (max): 54 Mbit/s. Chipset: Realtek, Frequency band: 2.4 - 2.4835 GHz. Security algorithms supported: 64-bit WEP, 128-bit WEP, WPA, WPA2, WPA-PSK, WPA2-PSK. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 10 - 90 %