TP-LINK 54Mbps 802.11a/b/g Wireless CardBus Adapter . Connectivity technology: Wireless, Host interface: CardBus. Data transfer rate (max): 54 Mbit/s, Supported data transfer rates: 54/48/36/24/18/12/9/6 Mbps. Frequency band: 2.4 - 2.4835, 5.150 - 5.850 GHz. Width: 115 mm, Depth: 54 mm, Height: 5 mm. Certification: CE, FCC