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Rectangular black ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO 400W ATX Power Supply DPS-400LB A

SKU CH-C4B0-G63MS

A 400W switching ATX unit with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support 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 sleep efficiency
  • Resonant LLC with DC-to-DC conversion delivers stable voltage and reduces coil whine
  • 400 W ATX output powers standard desktop builds

400W ATX Power Supply

The KHACHIMO DPS-400LB A is a 400W ATX power supply built for modern desktop systems. It carries 80 PLUS Gold certification for high efficiency and supports Modern Standby for fast wake-from-sleep performance. Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power.

Quiet builds and efficiency-focused systems

This unit suits builders who want low noise and strong efficiency at modest loads. The Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation. Systems needing more than 400W of continuous power should look at higher-capacity units.

400W continuous capacity

The supply comfortably handles mainstream CPUs and mid-range graphics cards within its 400W limit. Headroom shrinks when multiple high-power components or heavy overclocks push total draw toward the maximum rating. Peak loads above 400W will exceed the unit's capability.

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 sleep efficiency
  • Resonant LLC with DC-to-DC conversion delivers stable voltage and reduces coil whine
  • 400 W ATX output powers standard desktop builds

Caractéristiques

TypeATX

Questions sur cet article

What motherboard power connectors does my board need for this 400W ATX unit to work?

A standard 24-pin ATX connector and a 4-pin or 8-pin CPU power connector are required, which any modern ATX motherboard provides.

Will the Resonant LLC topology and DC-to-DC conversion deliver stable voltages to my older components during low-load states?

Yes, the topology provides clean, consistent power and supports modern energy-efficient sleep states that older hardware can use.

How can I verify the 80 PLUS Gold efficiency and Zero RPM fan mode are active after installation?

Monitor fan behaviour — it should stay off at idle — and check software power readings for high efficiency at typical loads.

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