This is a "Kensington Share Central 1" USB switch device. It allows a single USB peripheral to be shared between two desktops/laptops. I used to have a cordless keyboard/mouse USB transmitter dongle plugged into the back of this unit and used it to switch mouse and keyboard between a works laptop and my own desktop to save on desk space - but it would find other applications I'm sure. The product was originally released in 2008, and the type A port on the back has a black centre so I think that will make it a USB2 device but I haven't been able to confirm this. It comes with a couple of Type A to type B USB2 cables - one around 2m long and the other 1m. LED indications tell you what machine is connected and you just hit the button on the top to switch.

Located near LIDL in Knaresborough.

Kensington USB switch (Knaresborough HG5)