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Rectangular ATX power supply unit with matte black finish and cooling fan visible

KHACHIMO

KHACHIMO ATX Power Supply 80 PLUS Gold 0 RPM Fan Modern Standby

SKU CH-8WZ3-MYZ2H

An ATX power supply with 80 PLUS Gold efficiency, a zero-RPM fan mode for silent low-load operation, and Modern Standby compatibility for fast wake times

  • TypeATX
  • Modern Standby support for faster wake-from-sleep times
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • DC-to-DC design enables more efficient sleep states

ATX PSU with Modern Standby

This KHACHIMO ATX power supply carries 80 PLUS Gold certification and a resonant LLC topology with DC-to-DC conversion. It targets builders who want high efficiency and clean power delivery for modern desktop systems. The design supports Modern Standby for extremely fast wake-from-sleep times and better low-load efficiency.

Quiet-focused builders and sleep-state users

The zero RPM fan mode stops the cooling fan entirely at low and medium loads for near-silent operation, while reduced coil whine benefits noise-sensitive environments. Builders who need a specific wattage rating, modular cabling, or detailed rail specifications not listed here should look elsewhere.

Topology and fan behaviour

The resonant LLC topology with DC-to-DC conversion provides consistent power and enables more energy efficient sleep states. The zero RPM fan mode changes the acoustic profile by removing fan noise during lighter workloads, and the Modern Standby compatibility alters how the system resumes from sleep.

Highlights

  • Modern Standby support for faster wake-from-sleep times
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • DC-to-DC design enables more efficient sleep states

Specifications

TypeATX

Questions about this item

Does this power supply include the 24-pin ATX cable needed to power a standard motherboard?

Yes, as an ATX-type unit it ships with a 24-pin motherboard connector, plus the usual CPU and peripheral cables required for a typical build.

Will the Modern Standby support work with an older motherboard that only has traditional S3 sleep?

The unit is Modern Standby compatible, so it can deliver the low-current 5 V standby rail that newer boards expect, while remaining fully backward compatible with S3 sleep on older platforms.

How can I confirm the Zero RPM mode is actually stopping the fan at low load?

Under light workloads the fan remains completely still — zero RPM — so you can verify operation by listening for silence or watching the blades through the grille while the system idles.

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