C2G/Cables to Go 39993 USB 1.1 Over Cat5 Superbooster Extender Dongle Kit with 150 Foot Cat5 Cable Extends a USB 11 signal up to 150ft over category cables Allows for flexible positioning of USB peripherals Small form factor reduces installation clutter Kit includes both the transmitter and receiver units Please Note: The power demands of devices such as external drives and USB hubs may require the use of external power for proper operation