D-Link DWA-131/RE Wireless N Nano Adapter IEEE 802.11b/g/n USB 2.0 Frequency Band: 2.4 GHz - 2.462 GHz Standards: IEEE 802.11b/g/n Security: Wi-Fi Protected Access (WPA & WPA2) Wi-Fi Protected Setup (WPS) Push Button LEDs: Link/Activity Antenna: Internal Antenna Features: Slim and compact to fit neatly into your notebook with minimal protrusion Intelligent Antenna Technology maximizes the speed and range of you network connection WPA and WPA2 encryption provides high-level security for your network Wi-Fi Protected Setup Push Button for simple installation Backward compatible with existing 802.11g networks. Dimensions: 0.7 x 1.3 x 0.3 Weight: 0.01 lbs.