NETGEAR WPN111NA Wireless Mimo Usb Adapter USB 2.0 Adapter provides 802.11g wireless capability with advanced performance for up to 108 Mbps Small form factor for maximum portability Supports 128-bit WEP and WPA-PSK for enhanced security Backwards compatible with 802.11b wireless networks Device measures 3.72 x 0.6 x 1.19 inches (WxHxD)