Using this cable you can mount your Super WiFi USB Antenna-3 on the roof, mast or in a window up to 30 ft away. One end of the cable has two regular Type-A male plugs and the other end has a single Mini-B male plug. A rubber seal helps protect the connection from the weather. Although this 30 ft USB 2.0 cable is specially designed for the Super WiFi USB Antenna-3 it can be used for connecting other devices as well.