Extends any high speed USB 2.0 device up to 1640 feet (500 meters) from the USB source over multimode fiber optics cable. This new USB Extender supports all USB 2.0 devices, extending to 1640 feet (500 meters) away from the USB source. The receiver unit also contains a four-port USB 2.0 hub. By using fiber optic cables, the new Gefen USB 400FO extends USB peripherals a long distance from the location of a computer. It provides an solution free of EMI (Electromagnetic Interference) for USB extension.