Simply plug the USB socket into a computer and then you can plug in up to 3 USB devices using the ports at the side and a network cable into the end port.
We've tested the device on linux and the drivers are already in the kernel. The adaptor also includes a small driver disc for some versions of windows.
The adaptor has a light to indicate power going to it (Orange / Amber) and another which lights up upon network connection and flashes with data transfer.
This device requires a USB 2.0 or above port to work. Any computer made in the last 10 Years should have one of these or a USB 3.0 socket which is also compatible.