Edimax 450 Mbps 802.11a/b/g/n DualBand USB Adapter (EW-7733UnD) DualBand allows you to use this adapter normally in the 2.4 GHz band with the majority of the existing wireless networks. But, when you use it with a DualBand Router, you can utilize the 5 GHz band for non-congested and ultra high-speed transfers. Supports 3 streams, 450 Mbps 802.11n Wireless data rate - which is the latest wireless standard permitting users to have the farthest range with the widest coverage. (Up to 12 times the speed and 5 times the coverage of 802.11b.) It is backward compatible with 802.11b/g. It is one of two full-featured 450 Mbps DualBand 802.11n Wireless USB adapters, and the most affordable. It includes an extra feature of a flip-up antenna and an extra USB extender cable for increased flexibility. Supports WMM (Wi-Fi Multimedia) Standard so that you can let different types of data to have higher priority. It would allows better streaming of real-time data such as Video, Music, Skype.etc Standards: IEEE 802.11a/n; backward compatible with 802.11b/g. Security: 64/128 bit WEP Encryption and WPA-PSK, WPA2-PSK security, Hardware WPS and IEEE 802.1x Encryption. Port: 1 x 2.0 USB Type A. Wireless Data Rates: Up to 450 Mbps for both 2.4 and 5 GHz bands Modulation: OFDM: BPSK, QPSK, 16-QAM, 64-QAM, DSSS. Frequency Band: 2.412 ~2.462 GHz ; 5.150~5.825 GHz. Antenna: 2 sets of 3 internal chip antenna for both 2.4 and 5 GHz antenna with flip-up capability. Temperature: 0-40C (32-104F). Humidity: 95% (Max) Non-Condensing Channels: (FCC) 2.4 GHz : 1~11; 5Hz : 36,40,44,48,52,56,60,64,100,104,108, 112, 116, 136, 140, 149,153,161, 165. Power Input: USB Port (Self-Powered). Dimensions: 3.4 (l) x 1.1" (w) x .7" (h). System: Win2K/XP/Vista/Win7, Mac OSX 10.4+, Linux