The TP-LINK TL-WN722N wireless high gain USB (Universal Serial Bus) adapter means that you can connect a desktop or notebook computer to a wireless network & access high-speed Internet connection. Using Align 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 4d Bi detachable antenna can remarkably boost your signal range & speed. Now you can get a better Internet experience, such as downloading, gaming, video streaming & so on. Base on the IEEE 802.11n technology, TL-WN722N shows more excellent abilities of mitigating data loss over long distances & through obstacles in a small office or a large apartment, even in a steel-&-concrete building. Compared with legacy 54M products, TL-WN722N delivers performance enhancements, allowing you to have a more joyful surfing experience, including sharing files, watching streaming media. Clear Channel Assessment (CCA) automatically avoids channel conflicts using its clear channel selection feature & fully realizes the advantages of channel binding, greatly enhanced the wireless performance. Wireless N speed up to 150 Mbps makes it absolutely ideal for video streaming, online gaming & Vo IP High gain external antenna brings better performance than conventional internal antenna Easy wireless security encryption at a push of the QSS button Supports 64/128 WEP, WPA /WPA2/WPA-PSK/WPA2-PSK (TKIP/AES), supports IEEE 802.1X Detachable antennas allow for better alignment & stronger antenna upgrades Bundled utility provides quick & hassle free installation Seamlessly compatible with 802.11n/b/g products Supports ad-hoc & infrastructure mode Supports Windows 2000, Windows XP 32/64bit, Vista 32/64bit, 7 32/64bit