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Rectangular black ATX power supply unit with 400W label and 80 PLUS Gold badge

KHACHIMO

KHACHIMO M1Z-6400P3 400W ATX Power Supply

SKU CH-H5KM-FV1F1

An 80 PLUS Gold certified 400W ATX power supply with Modern Standby support, zero-RPM fan mode and resonant LLC topology for efficient, quiet operation

  • TypeATX
  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certification for high efficiency operation and lower power consumption
  • Zero RPM fan mode switches off the cooling 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
  • 400W ATX switching power supply delivers reliable power for standard desktop builds

400W ATX Gold Power Supply

The KHACHIMO M1Z-6400P3 is a 400W ATX power supply built for modern desktop PCs. It targets builders who need dependable power delivery for mid-range components and value the 80 PLUS Gold efficiency rating. The unit supports Modern Standby for rapid wake-from-sleep transitions and quieter low-load operation.

Practical limits of ATX 400W Gold

A 400W ceiling restricts the unit to systems with moderate total power draw, typically single-GPU configurations without extreme overclocking. The Gold certification guarantees high efficiency at defined load points, yet efficiency drops at very light or peak loads. Modern Standby compliance demands specific motherboard and OS support to function correctly.

Upgrade from lower-tier supplies

This unit replaces older bronze or unrated power supplies that lack DC-to-DC conversion and resonant LLC topology, delivering cleaner voltage regulation and reduced coil whine. The zero-RPM fan mode eliminates noise at low and medium loads, a tangible improvement over constantly spinning fans. The jump is worthwhile when building or refreshing a system that prioritises quiet operation and efficient sleep states.

Points forts

  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certification for high efficiency operation and lower power consumption
  • Zero RPM fan mode switches off the cooling 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
  • 400W ATX switching power supply delivers reliable power for standard desktop builds

Caractéristiques

TypeATX

Questions sur cet article

Is the KHACHIMO M1Z-6400P3 the only 400W ATX option available?

The M1Z-6400P3 is the specific model listed at 400W with ATX form factor.

What does the 80 PLUS Gold certification deliver in daily use?

It means the unit runs at high efficiency, lowering power draw, heat output and fan noise.

How does the ATX standard affect compatibility with my build?

The ATX form factor fits standard cases and motherboards using the 24-pin and CPU power connectors.

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