Buffalo WLI-CB-G300N Wireless-N Notebook Adapter, Internal, Wireless, CardBus, 270 Mbit/s Buffalo WLI-CB-G300N Wireless-N Notebook Adapter. Internal. Connectivity technology: Wireless, Host interface: CardBus. Maximum data transfer rate: 270 Mbit/s, Wi-Fi band: Single-band (2.4 GHz)