Though a single USB 2.0 cable length is limited to 5 meter or 16 feet, one could use a long chain of cables and hubs to reach a maximum usable distance of 25 meter or 82 feet. If you need connection longer than that, you can try a USB extender over Cat5 gadget. We've seen the Superbooster reached 150-feet, but slighter limited due to its wall plate mounting; here's more from Tripp Lite with similar rating but are standalone hubs.
The Tripp Lite USB extenders, U224-1R4-R and U224-4R4-R, allow you to locate USB devices up to 150 feet away from your computers over inexpensive Cat5/5e/6 UTP cables. Each consists of a transmitter and receiver units; the 1R4 model offers 3x USB 2.0 ports and an additional remote device, while the latter permits connection of up to four remote devices to a computer.
Both are plug-n-play, USB 1.1 compliant and require no system driver. The minor complaint is the receiving end requires AC power. Prices and availability are to be confirmed.