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Rectangular ATX power supply unit, matte black metal casing with ventilation grille and fan visible

KHACHIMO

KHACHIMO 54V 2.78A ATX Power Supply G0966A-540-0278

SKU CH-QHY9-DYS60

ATX power supply delivering 54 V at 2.78 A with 80 PLUS Gold efficiency, Zero RPM fan mode and resonant LLC topology for silent, efficient operation

  • TypeATX
  • Modern Standby support enables faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent performance
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • ATX form factor fits standard desktop builds with 54V 2.78A output

KHACHIMO 54V ATX Power Supply

The KHACHIMO G0966A-540-0278 is an ATX power supply delivering 54 volts at 2.78 amps. It carries 80 PLUS Gold certification for high-efficiency operation, reducing power consumption and heat. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and helps minimise coil whine.

Modern Standby systems and quiet-build enthusiasts

This unit suits PCs that use Modern Standby, offering extremely fast wake-from-sleep times and better low-load efficiency. Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation. Builders who need higher wattage for multi-GPU configurations or extreme overclocking should look at a higher-capacity power supply.

54V 2.78A fixed output specification

The defining specification is the fixed 54V 2.78A output, which determines whether this power supply matches the voltage and current requirements of the target system. Verify that the hardware you are powering accepts this exact output before purchase.

Highlights

  • Modern Standby support enables faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent performance
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • ATX form factor fits standard desktop builds with 54V 2.78A output

Specifications

TypeATX

Questions about this item

Will the fan on the G0966A-540-0278 need replacement after years of continuous use?

The Zero RPM Fan Mode keeps the fan off at low and medium loads, reducing wear and extending the service interval before any bearing replacement might be considered.

What limits sustained output on the 54V 2.78A ATX unit during heavy loads?

The 540 W combined output rating and 80 PLUS Gold efficiency ceiling define the maximum continuous power the supply can deliver without triggering protection.

How much noise and heat does the KHACHIMO 54V supply produce when running all day?

Resonant LLC topology with DC-to-DC conversion minimises coil whine, while Gold-rated efficiency and Zero RPM mode keep temperatures and acoustic output low during extended operation.

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