Increase the Wi-Fi capabilities in your home or business with this B/G/N antenna. The small unit is compatible with any 802.11b, 802.11g or 802.11n router that uses a wavelength of 2.4 Ghz. It has a high transmitter power of 28 dbm to increase the gain and range of a wireless network signal. The unit itself includes a rubber antenna which swivels for a more accurate Wi-Fi extension. The antenna is USB-supported to hook directly into the computer for power.