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

KHACHIMO

KHACHIMO Power Supply For FSP 550W FSP550-60PLG

SKU CH-1ESX-TZ6S4

An ATX unit delivering 550 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology for quiet, stable power

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC with DC-to-DC conversion
  • Reduced coil whine for quieter system performance

550 W ATX Power Supply

This KHACHIMO unit delivers 550 W of continuous power in a standard ATX form factor. It is built for desktop builders who need a reliable, gold-efficiency supply for a modern workstation or gaming PC. The Modern Standby compatibility ensures extremely fast wake-from-sleep times and better low-load efficiency. It suits systems that prioritise quiet, efficient operation.

Sustained Load Behaviour

Under sustained load the 80 PLUS Gold certification guarantees high efficiency operation for lower power consumption, less noise, and cooler temperatures. The Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine for quieter operation. It also enables use of more energy efficient sleep states during long sessions. The platform is designed to maintain stable output without thermal throttling.

Pre-Installation Checks

Verify that your chassis accepts a standard ATX power supply and that the cable set matches your motherboard and GPU power connectors. Confirm the 550 W capacity covers the combined peak draw of your CPU, graphics card and peripherals. Ensure the Modern Standby feature is supported by your motherboard firmware to benefit from fast wake times. Check that your case airflow can handle the fan when Zero RPM mode disengages under heavier loads.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC with DC-to-DC conversion
  • Reduced coil whine for quieter system performance

Specifications

TypeATX

Questions about this item

How loud and hot does the 550W FSP550-60PLG get when running all day?

The 80 PLUS Gold certification means high efficiency, so less waste heat and lower fan speeds. Zero RPM Fan Mode stops the fan completely at low and medium loads for near-silent operation, while the resonant LLC topology with DC-to-DC conversion reduces coil whine.

What must my PC already have for this 550W ATX supply to work?

Your case must fit a standard ATX power supply, and your motherboard needs a 24-pin ATX connector plus the necessary CPU power connector. The unit's Modern Standby compatibility also works best with a supporting motherboard and operating system.

Will the FSP550-60PLG run reliably with older components I want to keep?

Yes, the ATX form factor and standard connectors support legacy hardware. The resonant LLC topology with DC-to-DC conversion delivers clean, consistent power that protects older parts, and Modern Standby compatibility allows efficient sleep states even with older platforms.

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