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Black rectangular ATX power supply with gold efficiency badge

KHACHIMO

KHACHIMO 400W ATX Power Supply HF400W-S-110

SKU CH-64YB-WSXY7

ATX 400 W unit with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for quiet, low-power sleep states

  • TypeATX
  • Modern Standby support gives faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power use, less noise and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • 400 W ATX power supply built for modern sleep states and quiet performance

400W ATX Power Supply

The KHACHIMO HF400W-S-110 is a 400W ATX power supply designed for desktop builders who need efficient, quiet power delivery in a standard form factor. It carries 80 PLUS Gold certification and supports Modern Standby for rapid wake-from-sleep performance.

Sustained load behaviour

Under continuous load the resonant LLC topology with DC-to-DC conversion maintains clean, consistent output while reducing coil whine. The zero RPM fan mode keeps the cooling fan stopped at low and medium loads, enabling near-silent operation during typical workloads.

ATX interface limits

As an ATX unit it follows the standard connector layout and form factor, so compatibility depends on the case and motherboard supporting ATX dimensions and pinouts. The 400W rating sets the maximum combined output available to all rails, defining the practical ceiling for component power draw.

Points forts

  • Modern Standby support gives faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power use, less noise and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • 400 W ATX power supply built for modern sleep states and quiet performance

Caractéristiques

TypeATX

Questions sur cet article

Does the 80 PLUS Gold 400W unit run quietly and stay cool during all-day loads?

Yes — 80 PLUS Gold certification means high efficiency, so less waste heat and lower fan speeds, and Zero RPM mode stops the fan entirely at low and medium loads for near-silent operation.

What motherboard power connector does the ATX supply provide?

It uses a standard 24-pin ATX motherboard connector and a 4+4-pin CPU connector, matching modern ATX boards.

Will the Modern Standby compatible 400W PSU wake my older PC quickly from sleep?

Modern Standby support and Resonant LLC topology with DC-to-DC conversion enable faster wake times and efficient low-power states on compatible motherboards.

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