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Rectangular ATX power supply unit in matte black metal casing with cooling fan visible

KHACHIMO

KHACHIMO DAF300GBR 300W ATX power supply

SKU CH-Q4B2-XA81N

An ATX 300 W PSU with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and LLC resonant topology with DC-to-DC conversion

  • TypeATX
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • Modern Standby support enables fast wake from sleep and better low-load efficiency
  • 300 W ATX output powers mainstream desktop builds

300W ATX power supply

This KHACHIMO DAF300GBR unit delivers 300 W of continuous power in a standard ATX form factor. It carries 80 PLUS Gold certification and uses a resonant LLC topology with DC-to-DC conversion for stable output. Modern Standby compatibility allows rapid wake-from-sleep transitions and improved low-load efficiency. A zero-RPM fan mode stops the fan entirely at low and medium loads for silent running.

Best for quiet, efficiency-focused builds

Systems that prioritise low noise and high efficiency at modest power levels will benefit from the Gold-rated design and fan-stop feature. Builders planning multi-GPU configurations or components that demand substantially more than 300 W should consider higher-capacity alternatives. Offices and home PCs using integrated graphics or a single mid-range card are well matched to this unit.

300 W rated output

The single decisive specification is the 300 W maximum continuous power rating. Confirm that the total system draw under full load remains within this limit before selecting this power supply.

Points forts

  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • Modern Standby support enables fast wake from sleep and better low-load efficiency
  • 300 W ATX output powers mainstream desktop builds

Caractéristiques

TypeATX

Questions sur cet article

How loud is the fan when the DAF300GBR runs all day at typical loads?

The Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation.

What motherboard connector does the DAF300GBR need to power a standard ATX board?

It uses a standard ATX form factor with a 24-pin main connector and 4+4-pin CPU power.

Will the DAF300GBR work with an older system that only supports legacy sleep states?

Resonant LLC topology with DC-to-DC conversion enables more energy-efficient sleep states while remaining compatible with older hardware.

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