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Rectangular ATX power supply unit with matte black finish and rear fan grille

KHACHIMO

KHACHIMO RAC05-12SK 12V 0.42A ATX power supply

SKU CH-1WEX-C12MN

Delivers 12V at 0.42A with 80 PLUS Gold efficiency, Modern Standby support and a Zero RPM fan mode for silent low-load operation

  • TypeATX
  • Modern Standby support gives extremely fast wake-from-sleep
  • 80 PLUS Gold certified for lower power consumption and cooler temps
  • Zero RPM fan mode stops the fan at low loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 12V 0.42A ATX output provides stable power for compatible systems

Compact ATX power supply for low-wattage builds

The KHACHIMO RAC05-12SK is a new ATX power supply rated at 12 V 0.42 A, intended for compact or secondary systems that draw very little power. It fits standard ATX mounting points while keeping cable clutter minimal for small-form-factor cases.

80 PLUS Gold efficiency caps usable output

The unit carries 80 PLUS Gold certification, meaning it hits high efficiency at typical loads, but the 12 V 0.42 A rating limits total output to roughly 5 W. This hard ceiling makes it unsuitable for any discrete graphics card, modern CPU, or drive array that needs more current on the 12 V rail.

12 V 0.42 A rating decides compatibility

The single 12 V rail delivering 0.42 A is the specification that determines whether this unit can power your build; if your components require more than 5 W on the 12 V line, this supply will not work. Buyers needing higher 12 V current for mainstream or gaming hardware must choose a different model.

Highlights

  • Modern Standby support gives extremely fast wake-from-sleep
  • 80 PLUS Gold certified for lower power consumption and cooler temps
  • Zero RPM fan mode stops the fan at low loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 12V 0.42A ATX output provides stable power for compatible systems

Specifications

TypeATX

Questions about this item

Which capacity should I choose for a 12V 0.42A ATX unit?

The only option listed is a single 12V 0.42A model, so no capacity choice is required.

What does the 80 PLUS Gold rating deliver in my build?

It guarantees high efficiency at typical loads, lowering power draw, heat output and fan noise.

How does the ATX interface limit this supply in practice?

As an ATX unit it fits standard cases and motherboards, but the 12V 0.42A rating restricts it to very low-power systems.

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