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ATX breakout board bench power supply

SKU 106990006
  • Route -12, 3.3, 5, 12 volt supplies @ 1.25 amp
  • Indicator LEDs
  • Optional load resistor
  • Open source
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$13.80 1 pcs
$12.42 10 pcs
$11.73 20 pcs
$11.04 50 pcs

Recycle an ATX computer power supply into a beefy bench tool that powers your projects. The ATX breakout board routes the -12, 3.3, 5 and 12 volt ATX outputs to screw terminals, each protected by a 1.25 amp resettable polyfuse. These four voltages cover many common electronics needs, there's even a negative voltage (-12 volts) for op amps and audio projects.

An on/off button and a control circuit are included on-board, no modifications to the ATX supply are needed.


  • • -12, 3.3, 5, 12 volt supplies @ 1.25 amp
  • • 1.25 amp polyfuses with reset on each power rail
  • • Indicator LEDs show that each rail is working
  • • Power good and enabled indicator LEDs
  • • On-Off button and control circuit
  • • Optional load resistor included but NOT soldered
  • • Open source (CC BY-SA)

Note: A 9 Watt load resistor is included but not soldered to the board. In our experience most modern ATX supplies don't require a significant load on the 5 volt rail to start. An artificial load just wastes electricity and creates unnecessary heat. Please let us know your experience.

Some special ATX supplies provide -5volts, but the vast majority don't. We broke it out and added the fuse, but didn't populate the screw terminal.


If you encounter any problems when using this product, here is the forum from which you can get the technical support.

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★★★★★ Great bag
Purchased this for my 23 year old daughter in the butterscotch color. Great versatile color. She loves the size -- perfect for day or going out at night. Chain can be double to shorten for nighttime and left long to wear as a crossbody during the day.
September 2, 2013 by
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