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Rectangular silver ATX power supply unit with fan grille and cable bundle

KHACHIMO

KHACHIMO 300W ATX Power Supply HK400-11PEP

SKU CH-VKS6-Y488N

A 300 W ATX unit with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for fast wake times

  • Product typeATX
  • Modern Standby support for faster wake times and better low-load efficiency
  • 80 PLUS Gold certified for lower power draw, less noise and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • ATX 300 W form factor fits standard desktop builds

300 W ATX Power Supply

The KHACHIMO HK400-11PEP is a new 300 W ATX unit built for mainstream desktop builds and compact systems. It targets users who want efficient, quiet power delivery without excess capacity they will never use.

80 PLUS Gold Efficiency

The single specification that decides fit is the 80 PLUS Gold certification, which guarantees high efficiency across typical loads. This keeps electricity draw, heat output and fan noise lower than standard units.

Resonant LLC with Zero RPM Mode

Under sustained load the resonant LLC topology with DC-to-DC conversion delivers clean, consistent power while reducing coil whine. At low and medium loads the fan stops completely, and Modern Standby support enables extremely fast wake-from-sleep times.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $136.99
Typical for this category: the median of 10,869 items is $142.99.

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Specifications

Product
Product typeATX

Questions about this item

What does the 300 W rating mean for my build?

It delivers up to 300 W of continuous power to the system, suitable for office or entry-level gaming PCs with modest graphics cards.

What does the 80 PLUS Gold badge guarantee?

It certifies the unit meets Gold efficiency targets, lowering power draw, heat output and fan noise compared with lower-rated supplies.

What case space and mounting does the ATX form factor need?

It fits any standard ATX chassis using the four rear mounting holes and occupies a typical PSU bay depth.

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