ZyXEL ZyAIR G-220 - 802.11g Wireless USB 2.0 Adapter. Connectivity technology: Wireless, Host interface: USB. Data transfer rate (max): 54 Mbit/s, Supported data transfer rates: 1, 2, 5.5, 6, 9, 11, 12, 24, 36, 48, 54 Mbps. Modulation: CCK, DBPSK, DQPSK, OFDM, Frequency band: 2.4 - 2.4835 GHz. Compatibility: PC&Notebook. Security algorithms supported: 64/128/256-bit WEP, WPA