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Silver rectangular ATX power supply with fan grille and cable bundle

KHACHIMO

KHACHIMO HK550-35FP 450W ATX power supply

SKU CH-PCPV-GQVTV

ATX 450W power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for silent, low-power sleep

  • Product typeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps low-load operation near-silent
  • LLC resonant topology with DC-to-DC delivers clean, stable power
  • 450 W ATX unit fits standard desktop builds

450W ATX power supply for mainstream builds

The KHACHIMO HK550-35FP delivers 450 watts of continuous power through a standard ATX form factor. It targets builders assembling office PCs or entry-level gaming rigs that do not demand high-wattage headroom. The unit carries an 80 PLUS Gold certification for efficient energy conversion.

Fits standard ATX cases with modern standby support

The supply uses resonant LLC topology with DC-to-DC conversion to provide clean voltage rails for modern components. Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency. Zero RPM fan mode stops the fan entirely at low and medium loads for silent operation.

Sustained output at Gold efficiency

Under continuous load the Gold-rated design keeps power draw lower and temperatures reduced compared to lower-rated units. The resonant LLC topology and DC-to-DC conversion maintain stable voltages while minimising coil whine. The fan remains off until higher thermal thresholds are reached.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $130.99
Cheaper than about 55% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What is the maximum continuous power this 450W unit can deliver under sustained load?

The power supply is rated for 450 watts of continuous output.

How loud does the fan get during all-day operation?

Zero RPM mode stops the fan completely at low and medium loads for near-silent running.

Which motherboard power connectors must my board already have for this PSU to work?

It uses the standard ATX 24-pin and CPU 4+4-pin connectors found on modern boards.

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