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

KHACHIMO

KHACHIMO 275W ATX Power Supply FSP275-60CU

SKU CH-520F-B08GM

Delivers 275 W ATX power with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion for clean, quiet operation

  • TypeATX
  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold certification for lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low to medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 275 W ATX output suits compact and entry-level system builds

275W ATX Power Supply

The KHACHIMO FSP275-60CU is a 275W ATX power supply built for modern desktop systems. It carries 80 PLUS Gold certification for high-efficiency operation and supports Modern Standby for rapid wake-from-sleep performance. Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power across all rails.

Suitable for compact builds

This unit suits builders who want low-load efficiency, near-silent operation via Zero RPM fan mode, and support for modern sleep states. It is not intended for systems requiring higher wattage output, multiple high-power GPU connectors, or server-grade redundancy features.

Sustained load behaviour

Under continuous load the resonant LLC design maintains stable voltage regulation while the cooling fan remains off until medium loads are reached. This approach reduces coil whine and keeps temperatures lower during extended use compared to designs without DC-to-DC conversion.

Highlights

  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold certification for lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low to medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 275 W ATX output suits compact and entry-level system builds

Specifications

TypeATX

Questions about this item

Does this 275W ATX supply need a separate 80 PLUS Gold certified motherboard to deliver its rated efficiency?

The 80 PLUS Gold certification belongs to the power supply itself; it only requires a standard ATX motherboard to operate at its rated efficiency.

Will the Zero RPM Fan Mode still activate when paired with an older motherboard that lacks Modern Standby support?

Yes, Zero RPM Fan Mode depends on load level, not on Modern Standby, so the fan can still stop at low and medium loads with an older board.

How can I confirm the Resonant LLC topology with DC-to-DC conversion is functioning after installation?

You will observe stable voltages under load, minimal coil whine, and the fan remaining off during light use, indicating the topology is working as designed.

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