Combo 3.5 mm Audio Jack and 9 Wire USB Port for Panel-Mounting This panel-mount combination jack facilitates the creation of a permanent connection point for a wide variety of portable audio sources, including USB-compatible digital music players, thumb drives and smartphones. The jack accepts a 3.5 mm stereo plug for analog audio signals, providing output via a pair of female RCA jacks. A separate 9-wire USB Type A jack is provided for connection and charging of digital devices, outputting via a male USB Type A connector (USB 2.0 and USB 3.0-compatible). An appropriate USB cable for your device is required to make the input connection. This product is designed to be mounted to any flat surface up to 1-inch thick. Mounting requires a 1.125-inch hole and is tightened into place with a plastic wing-nut on the opposite side of the mounting surface. A labeled rubber cover with a tight-fitting seal provides protection against the elements. Overall cable length, 6 ft (1.83 m).