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Compact TFX power supply unit in matte black finish with integrated cooling fan and modular cable connectors visible

KHACHIMO

KHACHIMO TFX-400W 400W Power Supply

SKU CH-PSR8-ETMYA

A 400W TFX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby compatibility for quiet, low-power operation

  • TypeATX
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM mode stops the fan at low loads for silent running
  • Modern Standby support gives faster wake times and better idle efficiency
  • Resonant LLC with DC-to-DC conversion delivers clean power and reduces coil whine
  • Compact TFX form factor fits small-form-factor ATX builds

Compact 400 W TFX power supply

The KHACHIMO TFX-400W is a new 400 W TFX-form-factor unit built for small-form-factor PCs that need an ATX-compatible supply. It carries 80 PLUS Gold certification and Modern Standby support for quick wake times and lower idle draw.

Ideal for slim desktops needing quiet Gold

Suits builders upgrading or repairing slim tower or mini-ITX systems that require a TFX chassis fit and value silent running at low loads. Not for full-size ATX cases that need a standard PS2 enclosure, nor for high-wattage builds that demand more than 400 W of continuous power.

Straightforward TFX swap with LLC and DC-to-DC

Installation follows the usual TFX mounting pattern and standard ATX connectors. The resonant LLC topology with DC-to-DC conversion delivers stable rails and reduces coil whine. Zero RPM mode keeps the fan off at light loads, though the fan will spin up under sustained heavy draw.

Points forts

  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM mode stops the fan at low loads for silent running
  • Modern Standby support gives faster wake times and better idle efficiency
  • Resonant LLC with DC-to-DC conversion delivers clean power and reduces coil whine
  • Compact TFX form factor fits small-form-factor ATX builds

Caractéristiques

TypeATX

Questions sur cet article

What motherboard power connectors does the KHACHIMO TFX-400W require to function?

It uses a standard ATX 24-pin main connector and a 4-pin or 8-pin CPU power connector to deliver the rated 400W to the board.

Will the 80 PLUS Gold efficiency and LLC topology work reliably with an older motherboard that only supports legacy sleep states?

Yes, the DC-to-DC design provides stable voltages on all rails, and the Gold-rated efficiency operates independently of the motherboard sleep implementation.

How can I confirm the Zero RPM fan mode is active after assembling the PC?

At low or medium load the fan stops completely; you can verify silence visually and audibly while the system idles or runs light tasks.

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