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Rectangular ATX power supply with gold label and fan grille

KHACHIMO

KHACHIMO 305W ATX Power Supply Gold 0 RPM Fan

SKU CH-NPEH-MV5V7

ATX power supply delivering 305 W with 80 PLUS Gold efficiency, zero-RPM fan mode for silent low-load operation and resonant LLC topology with DC-to-DC conversion for clean power

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation at low loads via zero RPM fan mode
  • Cleaner power delivery from resonant LLC and DC-to-DC topology
  • Reduced coil whine for quieter system operation

305 W ATX Power Supply for Modern Standby PCs

The KHACHIMO 305 W ATX unit delivers 80 PLUS Gold efficiency and Modern Standby compatibility for fast wake-from-sleep performance. It suits office desktops, slim-tower builds and upgrade projects that need reliable power without excess wattage. The DC-to-DC resonant LLC topology keeps voltage regulation tight across all rails.

Sustained-load behaviour with Zero RPM fan

Under continuous load the resonant LLC design with DC-to-DC conversion maintains clean, consistent power while suppressing coil whine. At low and medium loads the cooling fan stops completely, giving near-silent operation during typical productivity tasks. Efficiency stays high across the curve, reducing waste heat and keeping internal temperatures lower.

305 W rated output decides fit

The single figure that determines suitability is the 305 W continuous rating; systems with discrete graphics cards or multiple drives will exceed this limit. Builders needing more headroom for high-end GPUs or heavy overclocking must select a higher-wattage unit.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation at low loads via zero RPM fan mode
  • Cleaner power delivery from resonant LLC and DC-to-DC topology
  • Reduced coil whine for quieter system operation

Specifications

TypeATX

Questions about this item

How loud is the KHACHIMO 305W ATX Gold PSU when the PC runs all day?

Its Zero RPM mode keeps the fan completely off at low and medium loads, so the unit stays silent during typical daily workloads.

Which cables or connectors must already be present in the case for this 305W unit to work?

The supply uses standard ATX connectors; you need a 24-pin motherboard plug, a CPU power plug (4-pin or 8-pin), and any 6-pin PCIe plugs your graphics card requires.

Will this 305W Gold PSU reliably power an older system that still uses legacy sleep states?

Yes, its Resonant LLC topology with DC-to-DC conversion supports Modern Standby and maintains stable voltages on the minor rails used by older hardware.

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