A benchtop power ... old computer PSUs lying around that could do a fine job themselves. [Frugha] decided to whip up a neat 3D-printed design for converting any ATX PSU into a usable bench unit.

If you need 5 volts or 12 volts at a respectable current they’re extremely useful, so quite a few people have used them as bench power ... here for the PC power supply to run reliably.