Netgear RangeMax NEXT Wireless Notebook Adapter. Connectivity technology: Wireless, Host interface: CardBus. Data transfer rate (max): 300 Mbit/s, Supported data transfer rates: 1 - 300 Mbps. Frequency band: 2.4 GHz. Bundled software: SmartWizard. Width: 123 mm, Depth: 54 mm, Height: 8.5 mm