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Rectangular metal ATX power supply unit with ventilation grille and cooling fan

KHACHIMO

KHACHIMO AT P8P9 400W Switching Power Supply ACE-T140A-RS

SKU CH-F3K7-4C0TQ

400 W ATX unit with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • 80 PLUS Gold certified for lower power consumption and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Modern Standby compatible for extremely fast wake-from-sleep and better low-load efficiency
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and reduces coil whine
  • ATX 400 W switching power supply for reliable system power delivery

New 400W ATX power supply

This new KHACHIMO ATX power supply delivers 400W of continuous power for desktop PCs. It carries 80 PLUS Gold certification for high efficiency and lower heat output. Resonant LLC topology with DC-to-DC conversion provides clean, stable voltage rails. Modern Standby compatibility enables extremely fast wake-from-sleep times.

Suits quiet, efficient mainstream builds

Builders who want near-silent operation at low loads will benefit from the Zero RPM fan mode that stops the fan entirely. The Gold-rated efficiency and resonant topology reduce coil whine and power draw for cooler, quieter systems. It is not for high-end workstations or gaming rigs requiring more than 400W. Buyers needing higher wattage or redundant power modules must look elsewhere.

400W rated output decides fit

The single specification that determines compatibility is the 400W maximum output. Your components' combined peak power draw must stay within this limit for stable operation. Check GPU and CPU power requirements against this 400W ceiling before purchasing. No other specification overrides this hard capacity constraint.

How it compares

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

Price $398.99
Pricier than about 85% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeATX

Questions about this item

What is the maximum continuous power the 400W unit can deliver under sustained load?

The power supply is rated for 400W continuous output under sustained use.

How does the 80 PLUS Gold certification affect noise and heat during all-day operation?

Gold-rated efficiency reduces waste heat, so the fan runs slower or stays off at low and medium loads, keeping noise and temperatures lower.

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

Your motherboard needs a standard 24-pin ATX connector and a 4-pin or 8-pin CPU power connector to operate with this unit.

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