The Smart E USB Extender might just be a concept as at time of publishing, but it could very well be more than a decent release in the real world if someone decides to take up the task. After all, it does help you pull out the right plug thanks to sockets at all four ends which ensures you won’t fumble over which wire to pull and which not to touch. We like the way different logos will light up to tell you whether you have plugged in a keyboard or mouse, while the percentage figure seen shows just how much juice the plugged in device has.