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Rectangular ATX power supply unit in matte black finish with side-mounted cooling fan and cable bundle

KHACHIMO

KHACHIMO 400W ATX power supply ACE-A140A-R11

SKU CH-M50E-9WW33

A 400 W ATX switching power supply with 80 PLUS Gold efficiency, zero-RPM fan mode, resonant LLC topology and Modern Standby support for quiet, low-power sleep states

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation through Zero RPM fan mode
  • Clean, stable power delivery from resonant LLC and DC-to-DC topology
  • Reduced coil whine for quieter system performance

400W ATX power supply for quiet builds

This KHACHIMO unit delivers 400W of continuous power through an ATX form factor. It carries 80 PLUS Gold certification for high efficiency and lower running costs. The resonant LLC topology with DC-to-DC conversion supplies clean power and reduces coil whine. Modern Standby compatibility allows extremely fast wake-from-sleep times.

Suited for low-power systems needing silence.

Builders assembling office PCs, home-theatre boxes or entry-level workstations will benefit from the Zero RPM fan mode that stops the fan at low and medium loads. The Gold-rated efficiency keeps heat and noise down in compact cases. Systems with power-hungry graphics cards or heavy overclocks should look at higher-wattage units instead.

80 PLUS Gold efficiency decides the fit

The Gold rating confirms high efficiency across typical loads, meaning less waste heat and quieter operation for the same components. If your build idles often or runs in a noise-sensitive room, this certification is the key spec. Buyers who need maximum wattage over efficiency should choose a different power supply.

Points forts

  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation through Zero RPM fan mode
  • Clean, stable power delivery from resonant LLC and DC-to-DC topology
  • Reduced coil whine for quieter system performance

Caractéristiques

TypeATX

Questions sur cet article

Should I pick the 400W unit or a higher-capacity model?

Choose the 400W model if your build draws up to that level; it covers typical mid-range systems without extra headroom you may not use.

What does the 80 PLUS Gold rating mean for daily use?

It guarantees high efficiency across common loads, so the unit wastes less electricity, runs cooler and keeps fan noise lower.

Does the ATX form factor limit which cases or motherboards I can use?

The standard ATX size fits most mid-tower and full-tower cases and works with any motherboard that uses a 24-pin ATX power connector.

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