ATX Power Supply Breakout Board – 4 Simultaneous Voltages, Individual Protection, and One-Touch Power Control
Have an old PC power supply gathering dust? Or perhaps you need an affordable lab-grade power source without the high price tag? This ATX breakout board solves your problem in minutes. Simply plug in your power supply, hit the switch, and you have instant access to +12V, +5V, +3.3V, and -12V, ready for your projects.
Note: This is a passive conversion adapter board; the ATX power supply unit is not included. It is compatible with any standard ATX power supply featuring a 20 or 24-pin connector.
Why choose this model? (Key Advantages):
- 4 Simultaneous Voltages, No Setup Required — +12V, +5V, +3.3V, and -12V are available immediately via dedicated terminals.
- Replaceable 5A Fast-Blow Fuses — Protect your sensitive equipment; if a short circuit occurs, the fuse trips, and replacements are easily found at any electronics store.
- Integrated ON/OFF Switch — No need to unplug cables between tests; power your projects on and off with a single flick.
- Status LED — A clear red indicator light lets you know at a glance if the power is live, saving you from constant multimeter checks.
- Universal 20/24-Pin Compatibility — Works seamlessly with both modern and older 20-pin ATX power supplies without needing extra adapters.
- Cost-Effective — Save €40–€100 compared to a dedicated lab power supply by repurposing your existing ATX hardware.
Details and Performance
This board is engineered for continuous use at your workbench. The screw terminals allow for quick, secure wire connections without the need for makeshift clips. The internal circuitry supports up to 5A per channel, making it ideal for powering Arduino modules, Raspberry Pi, ESP32, stepper motor drivers, or LED strips.
With compact dimensions of 128 × 48 × 30 mm, it fits perfectly on any workbench or inside a custom DIY project enclosure without taking up valuable space. The design prioritises accessibility, keeping all outputs and the power switch conveniently located on the front panel.
| Feature | Specification |
|---|---|
| Connector Compatibility | ATX 20-pin / ATX 24-pin |
| Output Voltages | +12V, +5V, +3.3V, -12V |
| Protection per Channel | 5A Fast-blow fuse (replaceable) |
| Max Current per Channel | 5A (fuse-limited) |
| Status Indicator | Red Power LED |
| Power Control | Integrated ON/OFF switch |
| Board Dimensions | 128 × 48 × 30 mm |
| Recommended Use | DIY, electronics lab, module testing, workshop |
Package Contents
- 1x ATX Power Supply to DC Breakout Adapter Board
Frequently Asked Questions
Is the ATX power supply included?
No. The package contains the adapter board only. You will need to use an existing ATX power supply or purchase one separately.
Which ATX power supplies are compatible?
Any standard ATX power supply with a 20 or 24-pin connector is compatible, including older 20-pin models.
How much current can I draw from each output?
Each channel is limited to 5A by the onboard fuse. The actual current available depends on the power rating of your ATX supply; the fuse ensures the board remains protected regardless of the supply’s capacity.
Does it work with Arduino, Raspberry Pi, or ESP32?
Yes. The +5V and +3.3V outputs are perfect for these platforms, providing stable power without the need for additional regulators.
What if a fuse blows?
The 5A fast-blow fuses are standard components. You can find them at any electronics or hardware store and replace them in seconds.
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