The TP-LINK TL-WN722N Wireless High Gain USB Adaptor allows you to connect a desktop or notebook computer to a wireless network and access high-speed Internet connection. Using AlignTM 1-stream technology based on 802.11n technology TL-WN722N provides a better wireless signal than existing wireless 802.11g technology. Most of all equipped 4dBi detachable antenna can remarkably boost your signal range and speed. Now you can get a better Internet experience such as downloading gaming video streaming and so on. With powerful 4dBi detachable antenna the TL-WN722N remains excellent performance in the long range and bad environment it can receive signal from wireless base even separated by 2 floors. QSS or Quick Security Setup is a handy feature that allows users to almost instantly setup their security simply by pressing the QSS button on the wireless adapter it automatically establishes a WPA2 secure connection instantly protecting your network.