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

KHACHIMO

KHACHIMO CRPS 300W ATX power supply 80 PLUS Gold

SKU CH-V9GD-SGH8H

A 300W ATX unit with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology for clean, quiet power delivery

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency cuts power draw and heat with 80 PLUS Gold
  • Silent low-load operation via Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC and DC-to-DC
  • 300 W ATX output for compact system builds

KHACHIMO CRPS 300W ATX PSU

This KHACHIMO CRPS 300W ATX power supply delivers 300 watts of continuous power for small-form-factor or low-draw desktop builds. It carries 80 PLUS Gold certification for high efficiency across typical loads. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. The unit is brand new and ready for installation.

Replaces older low-efficiency units

Swapping out a lower-rated or non-certified power supply for this model brings 80 PLUS Gold efficiency, reducing power consumption, noise and operating temperatures. The resonant LLC topology with DC-to-DC conversion provides cleaner power delivery and reduces coil whine. The jump is worthwhile when building a quiet, energy-conscious system that uses modern sleep states. Builders needing more than 300 watts for high-end graphics or multi-drive arrays should look elsewhere.

Sustained load behaviour

Under sustained load the resonant LLC topology with DC-to-DC conversion maintains consistent voltage regulation and clean power output. Zero RPM fan mode keeps the cooling fan off at low and medium loads for near-silent operation, engaging only when thermal demand rises. This design supports energy-efficient sleep states and reduces long-term component stress. High efficiency persists across extended sessions, keeping temperatures lower than less certified alternatives.

How it compares

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

Price $263.99
Pricier than about 73% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Will the 300W ATX unit fit a standard ATX case cut-out?

Yes, the CRPS 300W follows the ATX form factor so it matches the standard mounting holes and rear cut-out used by most cases.

How do I enable the Zero RPM fan mode and what wiring mistake disables it?

The fan stops automatically at low and medium loads; the only common error is forgetting the 4-pin PWM fan header connection that lets the PSU control the curve.

Which part typically wears out first on this Gold-rated supply and how do I know it is time?

The internal fan bearing is the usual wear item; rising noise or a fan that no longer spins up under load signals replacement is needed.

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