The High-Jack by Joshua Bowers

Able to keep your cord off the floor and reduce the hanging weight from the back of your machine, the High-Jack by Joshua Bowers affixes to the side of your workstation via two high-strength magnets and extends your power cord up to 5 feet from the ground. Just plug your power cord into the 1/4" input on the top end of the High-Jack, and then plug the cord at the bottom in into the 1/4" jack on your power supply and you're all set.