Mini Wireless N USB Adapter tp - link Model TL - WN725N The Smallest 150 Mbps WiFi - Adapter 150 Mbps WiFi - Nano Size USB 2.0 Package Contents - 150 Mbps Wireless N Nano USB Adapter TL - WN725N - Quick Installation Guide - Resource CD Specifications - Standards IEEE 802.11b/ g n Interface USB 2.0 - LED Status - Security WEP, WPA/ WPA2, WPA - PSK/ WPA2 - PSK - Dimensions 0.73*0.59*0.28 in (18.6 x15