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Compact 1U ATX power supply with fan grille and modular connectors

KHACHIMO

KHACHIMO SO-250ITX 1U 150W 250W ATX power supply

SKU CH-B1DV-DCM3F

A compact 1U ATX unit rated 150 W continuous and 250 W peak with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and LLC resonant DC-to-DC topology for clean, quiet power

  • TypeATX
  • Modern Standby support enables near-instant wake from sleep
  • 80 PLUS Gold certification reduces energy use and heat output
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC with DC-to-DC conversion delivers stable power and cuts coil whine
  • Rated 150 W continuous with 250 W peak for compact ITX builds

Compact ATX power supply for small builds

The KHACHIMO SO-250ITX is a 1U form-factor ATX unit rated at 150 W continuous with a 250 W peak capability. It targets compact desktop chassis and thin server enclosures where depth is limited but standard ATX connectors are required. Modern Standby compatibility enables rapid wake-from-sleep and improved low-load efficiency.

Suited for low-power compact systems.

This unit fits builders assembling office PCs, home-theatre boxes or lightweight servers that stay well within the 150 W sustained envelope. Zero RPM fan mode keeps acoustics minimal during typical desktop loads. Systems with discrete graphics cards, multiple drives or overclocked processors should look elsewhere because the continuous rating cannot support that demand.

Delivers 150 W steady

The 80 PLUS Gold certification confirms high efficiency across the load range, reducing waste heat and fan activity. Resonant LLC topology with DC-to-DC conversion supplies clean voltage regulation and helps suppress coil whine. Sustained loads above 150 W will exceed the rated capacity, while brief peaks up to 250 W are accommodated for transient spikes.

Highlights

  • Modern Standby support enables near-instant wake from sleep
  • 80 PLUS Gold certification reduces energy use and heat output
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC with DC-to-DC conversion delivers stable power and cuts coil whine
  • Rated 150 W continuous with 250 W peak for compact ITX builds

Specifications

TypeATX

Questions about this item

Does my motherboard need a standard ATX power connector for this unit?

Yes, the power supply uses the ATX form factor so it connects to any motherboard with a 24-pin ATX socket and matching CPU power header.

Will the 150 W continuous rating support an older graphics card that draws extra power from the PCIe slot?

The unit delivers 150 W continuous and 250 W peak, so a legacy card staying within that envelope will run, but total system draw must not exceed the continuous limit.

How can I confirm the Zero RPM mode is active after installation?

Under light or medium load the cooling fan stops completely; if the system is idle and the fan is silent, the mode is working as designed.

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