3com OfficeConnect Wireless 54Mbps 11g Compact USB Adapter. Connectivity technology: Wireless, Host interface: USB, Interface: USB 2.0. Data transfer rate (max): 54 Mbit/s, Supported data transfer rates: 11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps; 11b: 11, 5.5, 2, 1 Mbps. Weight: 25 g. LED indicators: Activity, Link. Security algorithms supported: WPA TKIP