You can easily share an external USB drive or a printer over a network. But why can"t you share all the rest of your USB devices just as easily? Lab instruments, scanners, cameras, card readers, bar code scanners, PDAs, USB keys and others are usually considered to be non-shareable. Thus, normally you need to move your USB devices from one computer to another. Sometimes, though, this is not an easy task, especially when you need to use a device that is physically located in another building or even another city.