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Rectangular ATX power supply unit, matte black finish with fan grille visible

KHACHIMO

KHACHIMO R350 G6C 400W ATX Power Supply EFRP-400

SKU CH-9Z8M-7AJMR

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

  • TypeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency cuts power draw and heat with 80 PLUS Gold
  • Silent operation at low loads via Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC with DC-to-DC
  • Quieter running thanks to reduced coil whine from advanced topology

400W ATX power supply for Modern Standby systems

The KHACHIMO R350 G6C EFRP-400 is a new 400W ATX power supply built for desktop PCs that use Modern Standby sleep states. It carries 80 PLUS Gold certification and uses a resonant LLC topology with DC-to-DC conversion to deliver clean, consistent power while reducing coil whine. A zero-RPM fan mode stops the fan entirely at low and medium loads for near-silent operation.

Suited for efficient office or home PCs.

This unit fits builders who want fast wake-from-sleep times, high efficiency at low loads, and quiet running in a standard ATX form factor. Buyers planning systems with power-hungry graphics cards, multiple drives, or heavy overclocking should look at higher-capacity power supplies because this model tops out at 400W.

80 PLUS Gold efficiency at 400W

The single specification that decides fit is the 400W rating combined with 80 PLUS Gold efficiency. If your component list stays within that power envelope, the supply will run efficiently and quietly; if the build demands more, this unit cannot meet the need.

Punti di forza

  • Fast wake from sleep with Modern Standby support
  • High efficiency cuts power draw and heat with 80 PLUS Gold
  • Silent operation at low loads via Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC with DC-to-DC
  • Quieter running thanks to reduced coil whine from advanced topology

Caratteristiche tecniche

TypeATX

Domande su questo articolo

How do I install the ATX power supply, and what step is often missed?

Mount the unit in the case with four screws, connect the 24-pin ATX and CPU power cables, then enable Modern Standby in the motherboard BIOS so the fast wake-from-sleep feature actually works.

What maintenance will the 400W supply need later?

The Zero RPM fan stays off at low and medium loads, so dust buildup is minimal; simply blow out the grill once a year with compressed air to keep airflow clear.

What limit appears first during sustained heavy use?

The 80 PLUS Gold efficiency rating guarantees 80 percent minimum efficiency at typical loads, so the first constraint you hit is the 400W maximum output — exceeding it triggers over-power protection.

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