Description:brand new and high quality. Feature:This is a USB Wlan Dongle, which fully supports the features and functional compliance of IEEE 802.11n, up to 300Mbps high-speed wireless net-work connections.This item is with RTL8192EU Chipset, both downlink and uplink can be up to 300Mbps. USB2.0 port available, plug and for play, no other drivers needed.Support for Windows 2000/XP/Vista/Win7, for Linux, for Mac-OS10.4/10.5/10.6. Specifications:Item Type: USB Wifi AdapterMaterial: plastic+metalSize: 32mmx16mmx8mm/1.2x0.6x0.3inColor: BlackStandard: IEEE 802.11n, IEEE802.11g, IEEE 802.11bInterface: USB2.0Operating frequency: 2.4-2.4835GHzSecurity: 64/128 bit WEP/WPA/WPA2,WPA-PSK/WPA2-PSK(TKIP/for AES)Antenna type: Internal Omni-directional AntennaOperating temperature 0-40 CQuantity: 1 PC Note:No retail package.Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes:1 x USB Wifi Adapter1 x CD-Driver(other accessories demo in the picture are not included!)