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Rectangular black ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO -5V P8P9 400W PP-400V PP-300V power supply

SKU CH-AAHV-B6S7B

An ATX power supply delivering 400 W with 80 Plus Gold efficiency, Modern Standby support, a zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode
  • Cleaner power delivery using Resonant LLC with DC-to-DC conversion
  • 400 W capacity in standard ATX form factor

ATX 400 W PSU for modern desktops

This ATX power supply delivers 400 W of continuous output and carries 80 PLUS Gold certification for high efficiency. It suits builders who want reliable power for standard desktop components and value low idle consumption. The unit supports Modern Standby so the system resumes from sleep almost instantly. It is not intended for high-end multi-GPU rigs or workstations that demand significantly more wattage.

Check ATX fit and cable needs

Verify that your chassis accepts a standard ATX power supply and that the included connectors match your motherboard, CPU and graphics card requirements. Confirm the physical depth of the unit clears any drive cages or cable routing channels in your case. Ensure the total system draw stays within the 400 W rating before ordering. No adaptor cables are mentioned in the specifications.

Sustained load with Zero RPM and LLC

Under continuous load the resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight and reduces coil whine. The Zero RPM fan mode stays off at low and medium loads, so acoustics remain minimal during typical workloads. When the fan does spin, the Gold-rated efficiency limits waste heat, helping the unit run cooler over long sessions. The 300 V and 400 V designations indicate robust input and output voltage handling.

How it compares

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

Price $205.99
Pricier than about 64% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What connectors come attached to the KHACHIMO 400W ATX power supply?

The unit is a standard ATX power supply with fixed cables providing motherboard, CPU, graphics and peripheral power connectors.

Which of the listed model codes matches the 400 watt unit?

The PP-400V designation identifies the 400 watt version, while PP-300V refers to a 300 watt model.

How does the 80 PLUS Gold rating affect daily use?

It means the supply runs at high efficiency across typical loads, lowering electricity draw, reducing heat output and allowing the fan to stay off longer under light work.

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