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Compact silver ATX power supply unit with fan grille visible

KHACHIMO

KHACHIMO SSG-250G 250W 80 PLUS Gold ATX power supply

SKU CH-Q4R0-CSV2V

250W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support

  • TypeATX
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Modern Standby support gives faster wake-from-sleep and better idle efficiency
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 250 W ATX form factor fits standard desktop builds

250W ATX power supply for modern PCs

This 250W ATX unit targets compact or office builds that need reliable power without excess capacity. It fits standard ATX cases and supports Modern Standby for instant wake and improved low-load efficiency. The 80 PLUS Gold rating ensures high conversion efficiency across typical workloads.

Sustained load behaviour

Under continuous demand the resonant LLC topology with DC-to-DC conversion delivers clean, stable rails while keeping coil whine low. The zero-RPM fan mode stays active through light and medium loads, so the unit runs silently until thermal conditions require active cooling. Efficiency remains high even during prolonged operation.

250W output ceiling

The 250W maximum output defines the power budget for the entire system, limiting the graphics card and CPU combination that can be supported. Builders planning high-end discrete GPUs or multi-drive arrays will need a higher-wattage unit. This supply suits integrated-graphics or entry-level dedicated configurations.

Highlights

  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Modern Standby support gives faster wake-from-sleep and better idle efficiency
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 250 W ATX form factor fits standard desktop builds

Specifications

TypeATX

Questions about this item

How loud and hot does the SSG-250G get when it runs all day?

The 80 PLUS Gold certification and Resonant LLC topology with DC-to-DC conversion deliver high efficiency, so less waste heat is produced and the cooling fan can stay off during low and medium loads via Zero RPM Fan Mode for near-silent operation.

What connectors or components must my build already have for this PSU to work?

It uses the standard ATX form factor, so your case must accept an ATX power supply and your motherboard needs the matching ATX power connectors.

Will the SSG-250G work reliably with older hardware I plan to keep?

Modern Standby compatibility enables more energy-efficient sleep states, while the Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine across both new and legacy components.

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