Cisco-Linksys WPC54G Wireless-G Notebook Adapter Product Type - Adapter Data rates up to 54Mbps -- 5 times faster than Wireless-B (802.11b) Also interoperates with Wireless-B networks (at 11Mbps) Up to 128-bit WEP encryption Advanced wireless security: Wi-Fi Protected Access (WPA), and up to 128-bit encryption