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KHACHIMO 400W ATX power supply unit with 80 PLUS Gold badge and cooling fan

KHACHIMO

KHACHIMO 400W ATX Power Supply DPS-400AB-12C 80 PLUS Gold

SKU CH-ZF35-K8F04

An ATX power supply delivering 400W with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby compatibility

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stays off at low loads for silent running
  • LLC resonant plus DC-to-DC topology delivers clean power
  • 400 W ATX output for standard desktop builds

400W ATX Power Supply for Modern Standby Systems

This 400W ATX unit targets builders who want 80 PLUS Gold efficiency and Modern Standby support in a compact power supply. It suits office PCs, small-form-factor rigs, and secondary machines that prioritise low idle draw and fast wake times. Buyers needing more than 400W of continuous power for multi-GPU arrays or heavy overclocking should look elsewhere.

Standard ATX Installation with Zero RPM Fan

The supply fits any ATX chassis using the regular four-screw pattern and the usual 24-pin, CPU and peripheral connectors. Zero RPM mode keeps the fan off at low and medium loads, so cable routing near the fan grille is the only practical snag — tight bends can block airflow when the fan eventually spins. No software or extra wiring is required to enable the semi-passive behaviour.

400W Continuous Output with Gold-Rated Headroom

The 400W rating is sustained across the 12V rail thanks to resonant LLC topology and DC-to-DC conversion, delivering clean power for mid-range CPUs and single graphics cards. Efficiency peaks at typical loads, reducing waste heat and keeping temperatures lower. Systems drawing sustained loads above 400W will trip the protection circuitry, so total component TDP must stay within that limit.

How it compares

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

Price $99.99
Cheaper than about 67% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How can I confirm the power supply is delivering stable power after installation?

The 80 PLUS Gold certification means the unit runs at high efficiency, so you should see lower power draw, less fan noise and cooler temperatures once the system is running.

Which cables are included and what must I source separately?

The unit is an ATX power supply with standard ATX connectors; any proprietary or extra-length cables required for your specific chassis or GPU would need to be purchased separately.

Should I choose the DPS-400AB-12C or another listed variant for a 400 W build?

All listed model codes — DPS-400AB-12C, DPS-400AB-12A and DPS-400AB-12G — refer to the same 400 W ATX unit, so any of them will suit a 400 W build.

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