Buffalo Wireless-N Nfiniti Notebook Adapter. Connectivity technology: Wireless, Host interface: CardBus, Interface: 3-Bit CardBus. Data transfer rate (max): 0 Mbit/s. Frequency band: 2,412 - 2,462 GHz. Width: 55 mm, Depth: 122 mm, Height: 10 mm. Dimensions (WxDxH): 55 x 122 x 10 mm, Security features: WPA2-PSK (TKIP, AES), 802.1x, 128/64-bit WEP, Compatible operating systems: Windows? 2000, Windows? XP