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Silver rectangular 2U ATX power supply unit with fan grille

KHACHIMO

KHACHIMO JCI-4012PP-1M1 400W ATX power supply

SKU CH-Y098-26273

A 400W ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion for clean, quiet power delivery

  • Product typeATX
  • Faster wake from sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Silent running at low load via Zero RPM fan mode
  • Cleaner power delivery from resonant LLC with DC-to-DC conversion
  • Reduced coil whine through resonant LLC topology

2U 400W ATX Power Supply

The KHACHIMO JCI-4012PP-1M1 is a 400W ATX unit built in a 2U form factor for compact server or workstation chassis. It targets builders who need reliable power delivery in space-constrained environments. Buyers needing higher wattage for multi-GPU configurations should look elsewhere.

Sustained Load Behaviour

The resonant LLC topology with DC-to-DC conversion maintains clean, consistent power output during extended operation. This design supports stable voltage regulation across varying loads without relying on short-burst performance figures. The 80 PLUS Gold certification confirms high efficiency is maintained throughout typical operating ranges.

Thermals, Noise and Power Draw

Zero RPM fan mode stops the cooling fan entirely at low and medium loads for near-silent operation. Modern Standby compatibility enables extremely fast wake-from-sleep times while improving low-load efficiency. The efficient topology reduces coil whine and contributes to cooler temperatures under normal use.

How it compares

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

Price $179.99
Pricier than about 59% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How loud does the 400W unit get during all-day operation?

The 80 PLUS Gold certified design keeps waste heat low, and the Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent running.

Which connectors must my build already provide for this ATX supply to work?

Standard ATX motherboard and peripheral cables are required; the unit follows the ATX form factor so existing ATX-compatible harnesses will connect directly.

Will the JCI-4012PP-1M1 run stably with older components that draw little power at idle?

Yes, Modern Standby compatibility and the resonant LLC topology with DC-to-DC conversion deliver clean, consistent power even at very low loads, reducing coil whine and supporting efficient sleep states.

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