USB Active Extension Cable
The specification for USB states that the maximum length of a USB cable is 5 meters.
As a result, you cannot extend the distance of your USB device more than 16 feet without using a USB "active" extension cable (also known as a USB repeater cable).
This cable contains active electronics which boost the USB signal for maximum reliability and performance over extended distances.
For more information, please visit: http://www.usbgear.com/USB-Extenders.html