have a big industrial-style push button act as a one-key USB keyboard. He could have hacked something together in any number of ways, but instead he decided to create a truly elegant solution.
They would make a great USB conversion keyboard, but the board to board connector is very hard to find, and no one has yet managed to get the keyboard and track point working as a USB HID device.
Keyboard shortcuts are keys ... in the empty field of the box and hit the Enter key. When the Disk Management window opens, right-click on your USB drive and select Change Drive Letter and Paths ...