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

KHACHIMO

KHACHIMO 120W ATX Power Supply YH-5301K YM-2301K

SKU CH-C6V0-W2FS7

A 120W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for fast wake times

  • TypeATX
  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low load
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 120 W ATX output in models YH-5301K and YM-2301K

120W ATX Power Supply

The KHACHIMO YH-5301K is a 120W ATX switching power supply designed for low-power desktop systems. It suits office PCs, compact builds or upgrades where a modest, efficient unit is required. The unit carries 80 PLUS Gold certification for high efficiency across typical loads. It is not for builders who need more wattage for discrete graphics cards or multi-drive arrays.

ATX Standard and Efficiency Limits

The ATX form factor ensures mechanical compatibility with standard cases and motherboards, while the 120W rating caps the total continuous output available to components. 80 PLUS Gold certification guarantees at least 80 per cent efficiency at defined load points, reducing waste heat and electricity draw. The supply does not support higher-wattage configurations or auxiliary connectors beyond what the 120W design provides.

Installation and Common Issues

Installation follows the usual ATX procedure: mount the unit, connect the 24-pin main cable and any peripheral leads, then secure the AC cord. Zero RPM fan mode keeps the system silent at low loads, though the fan will spin up under sustained demand. Builders sometimes find the fixed cable set limits routing options in very small chassis. Ensure the total system draw stays within the rated output to avoid shutdowns.

Highlights

  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode stops the fan at low load
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 120 W ATX output in models YH-5301K and YM-2301K

Specifications

TypeATX

Questions about this item

Should I choose the YH-5301K or YM-2301K model for my build?

Both model numbers refer to the same 120W ATX unit; pick whichever code matches your order or regional listing.

What does the 120W rating mean when the supply is installed in a working PC?

It is the maximum continuous power the unit can deliver across all rails while maintaining 80 PLUS Gold efficiency and Zero RPM fan behaviour.

Which ATX standard does this supply follow and what does that limit in practice?

It follows the ATX form factor, so it fits standard cases and provides the usual 24-pin, CPU and peripheral connectors for a 120W system.

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