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Rectangular black ATX power supply unit with gold efficiency badge

KHACHIMO

KHACHIMO DX100 DX200 DX500 S3 Power Supply

SKU CH-BF9V-MF33Y

ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Modern Standby support for rapid wake times and better low-load efficiency
  • 80 PLUS Gold certification for high efficiency, lower consumption 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 delivers clean, consistent power and reduces coil whine
  • ATX form factor fits standard desktop builds

ATX power supply for modern standby systems

The KHACHIMO DX100 DX200 DX500 S3 is an ATX power supply built for PCs that use Modern Standby sleep states. Its 80 PLUS Gold certification means high efficiency across typical loads, reducing waste heat and keeping fan speeds low. The resonant LLC topology with DC-to-DC conversion delivers clean, stable voltage rails for reliable component operation. This unit suits builders who want efficient, quiet power for contemporary desktop platforms.

Zero RPM fan mode and resonant LLC topology

A Zero RPM fan mode stops the cooling fan completely at low and medium loads, providing near-silent operation during everyday tasks. The resonant LLC topology with DC-to-DC conversion minimises coil whine and supports deeper, more energy-efficient sleep states. Together these features change the acoustic profile of the build, making the power supply virtually inaudible when the system is idle or under light use. This benefits users who prioritise a quiet computing environment.

80 PLUS Gold efficiency rating

The single specification that determines suitability is the 80 PLUS Gold efficiency rating, which guarantees high conversion efficiency at 20, 50 and 100 per cent load. Buyers who need a lower efficiency tier or who are building a system without Modern Standby support may find this unit exceeds their requirements. Ensure your motherboard and case support standard ATX dimensions before purchase.

How it compares

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

Price $405.99
Pricier than about 85% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Will the cooling fan on this KHACHIMO DX100 DX200 DX500 S3 unit need replacing after long use?

The Zero RPM Fan Mode stops the fan at low and medium loads, reducing wear; under heavy sustained loads the fan spins normally and may eventually require replacement like any moving part.

What limit appears first when this KHACHIMO DX100 DX200 DX500 S3 power supply runs at full output for hours?

The 80 PLUS Gold certification guarantees high efficiency up to full load, so the practical limit is the thermal threshold that triggers fan-speed increases or protective shutdown if airflow is insufficient.

How much noise and heat does the KHACHIMO DX100 DX200 DX500 S3 produce during all-day operation?

At low and medium loads the Zero RPM Fan Mode keeps the unit silent, while the Resonant LLC topology with DC-to-DC conversion minimises coil whine; under sustained heavy load the fan runs and exhaust heat rises, though Gold efficiency keeps both lower than less efficient designs.

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