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Silver rectangular ATX power supply unit with cooling fan visible

KHACHIMO

KHACHIMO ATX 30W power supply ZWS30-5

SKU CH-HF39-26FJX

An ATX power supply delivering 30 W with 80 PLUS Gold efficiency, Modern Standby support and a zero-RPM fan mode for silent low-load operation

  • TypeATX
  • Modern Standby support for fast wake and better low-load efficiency
  • 80 PLUS Gold certified for lower power draw, less noise and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • ATX form factor 30W unit designed as a direct replacement for the ZWS30-5

30 W ATX power supply for low-power builds

The KHACHIMO ZWS30-5 delivers 30 W of continuous power in a standard ATX form factor. It suits compact systems, embedded boards or secondary machines that draw little current and need reliable DC output. The unit is new and built around a resonant LLC topology with DC-to-DC conversion for clean voltage regulation.

Replaces older low-wattage ATX units lacking

Upgrading makes sense when the existing supply cannot meet Modern Standby requirements or runs its fan constantly at idle. The jump is worth it if the target system spends long periods in sleep states and needs extremely fast wake times without fan noise.

Limited to 30 W total output and ATX connector set

The 80 PLUS Gold rating guarantees high efficiency only within this narrow power envelope; it cannot support discrete graphics cards, multiple drives or high-end CPUs. Zero RPM mode functions at low and medium loads, but the supply has no headroom for sustained heavy demand.

Highlights

  • Modern Standby support for fast wake and better low-load efficiency
  • 80 PLUS Gold certified for lower power draw, less noise and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • ATX form factor 30W unit designed as a direct replacement for the ZWS30-5

Specifications

TypeATX

Questions about this item

What ATX mounting pattern does the KHACHIMO ZWS30-5 use for case installation?

The KHACHIMO ZWS30-5 uses the standard ATX mounting pattern with four screw holes on the rear face, compatible with any ATX chassis.

How do I connect the power cables correctly, and what common mistake should I avoid?

Connect the 24-pin ATX motherboard cable and required CPU or peripheral cables firmly until latched; a common mistake is leaving the 24-pin connector partially seated, which prevents boot.

When should I expect to replace the cooling fan in this 30W unit?

The fan runs only above low and medium loads due to Zero RPM mode, reducing wear; typical fan lifespan exceeds several years of continuous operation before replacement is needed.

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