The TP-LINK TL-WN722N wireless high gain USB adapter allows you to connect a desktop or notebook computer to a wireless network and 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 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. Device Type: Network adapter Form Factor: External Interface (Bus) Type: USB 2.0 Dimensions (WxDxH): 3.7 in x 1 in x 0.4 in Data Link Protocol: 802.11b, 802.11g, 802.11n Data Transfer Rate: 150 Mbps Frequency Band: 2.4 GHz Compliant Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.1x, IEEE 802.11n System Requirements: Microsoft Windows 2000, Microsoft Windows XP, Microsoft Windows Vista Device Type: Network adapter Form Factor: External Interface (Bus) Type: USB 2.0 Connectivity Technology: Wireless Data Link Protocol: 802.11b, 802.11g, 802.11n Spread Spectrum Method: DSSS, FHSS Data Transfer Rate: 150 Mbps Line Coding Format: DBPSK, DQPSK, CCK, 64 QAM, 16 QAM, OFDM Frequency Band: 2.4 GHz Status Indicators: Link activity Features: Ad-Hoc Mode, roaming function Compliant Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.1x, IEEE 802.11n Antenna: External detachable Gain Level: 4 dBi Connections: 1 x USB 2.0 - 4 pin USB Type A Encryption Algorithm: AES, 128-bit WEP, 64-bit WEP, TKIP, WPA, WPA2, WPA-PSK, WPA2-PSK Compliant Standards: FCC Part 15 OS Required: Microsoft Windows 2000, Microsoft Windows XP, Microsoft Windows Vista Width: 3.7 in Depth: 1 in Height: 0.4 in Min Operating Temperature: 32 °F Max Operating Temperature: 104 °F Humidity Range Operating: 5 - 95%