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Rectangular ATX power supply unit with matte black metal casing and rear fan grille

KHACHIMO

KHACHIMO CRPS 400W ATX Power Supply P1S-2400V-R

SKU CH-VBXR-J80KE

An 80 PLUS Gold 400W ATX supply with zero-RPM fan mode and LLC resonant topology for silent, efficient power

  • TypeATX
  • Modern Standby support for extremely fast wake-from-sleep times
  • 80 PLUS Gold efficiency for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • 400W ATX output rated for stable system performance

400W ATX Power Supply

The KHACHIMO CRPS 400W ATX Power Supply P1S-2400V-R delivers 400 watts of continuous power for standard desktop builds. It targets system integrators and DIY builders who need reliable, efficient energy delivery for mainstream components without over-provisioning capacity.

Efficiency and Acoustic Features

The 80 PLUS Gold certification confirms high efficiency across typical loads, reducing waste heat and lowering electricity draw. Zero RPM fan mode stops the cooling fan completely at low and medium loads, while the resonant LLC topology with DC-to-DC conversion minimises coil whine and supports modern standby sleep states for faster wake times.

Suitability and Limits

This unit suits compact or office-oriented systems where quiet operation and low idle power matter. Builders planning multi-GPU configurations, high-end workstation CPUs, or heavy overclocking should look elsewhere because the 400W ceiling and single ATX form factor cannot sustain those power demands.

Highlights

  • Modern Standby support for extremely fast wake-from-sleep times
  • 80 PLUS Gold efficiency for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • 400W ATX output rated for stable system performance

Specifications

TypeATX

Questions about this item

Does the fan need periodic cleaning or replacement on the CRPS 400W unit?

The Zero RPM Fan Mode keeps the fan off at low and medium loads, reducing dust build-up and wear; occasional compressed-air cleaning is sufficient.

What limits continuous output on this 400W supply?

The 400W rated capacity is the primary limit; sustained loads above that will trigger over-power protection and shut the unit down.

How much heat and noise does the P1S-2400V-R produce under all-day load?

80 PLUS Gold efficiency and Zero RPM Fan Mode keep temperatures lower and the fan silent at typical loads; at higher loads the fan spins but resonant LLC topology minimises coil whine.

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