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Rectangular ATX power supply unit in matte black finish with cooling fan visible

KHACHIMO

KHACHIMO D14-500P1A 400W 500W ATX power supply

SKU CH-WX2P-7TA22

ATX power supply rated 400 W continuous with 500 W peak, 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby compatibility enables extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption, less noise, and cooler temperatures
  • Zero RPM fan mode stops the cooling fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Rated 400 W continuous and 500 W peak output for reliable ATX system power

Efficient ATX Power Supply

This KHACHIMO unit delivers a continuous 400 W and peaks at 500 W from a standard ATX form factor. It carries 80 PLUS Gold certification and uses a resonant LLC topology with DC-to-DC conversion for stable voltage regulation. Modern Standby compatibility enables rapid wake-from-sleep transitions and improved low-load efficiency. The design targets builders who want quiet, efficient power for mainstream systems.

Suits Quiet-Focused Builds

The Zero RPM fan mode stops the fan completely at low and medium loads, making it a good fit for noise-sensitive workstations or home-office PCs. Builders who need more than 400 W of sustained output or who require multiple high-power GPU connectors should look at higher-capacity units instead.

Sustained-Load Behaviour

Under continuous load the resonant LLC and DC-to-DC stages maintain clean power delivery while the fan spins up only when thermal conditions demand it. Gold-rated efficiency keeps waste heat and operating noise lower than bronze-class supplies during extended sessions. Modern Standby support ensures the platform remains responsive after long idle periods.

Highlights

  • Modern Standby compatibility enables extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption, less noise, and cooler temperatures
  • Zero RPM fan mode stops the cooling fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Rated 400 W continuous and 500 W peak output for reliable ATX system power

Specifications

TypeATX

Questions about this item

What motherboard power connectors does the ATX D14-500P1A require to be present on the motherboard?

The ATX form factor uses a standard 24-pin main connector and a 4-pin or 8-pin CPU power connector; your motherboard must provide both for the supply to work.

Will the 80 PLUS Gold certified 400W unit deliver stable power to an older graphics card that only needs a 6-pin PCIe connector?

The DC-to-DC conversion and resonant LLC topology provide clean, consistent power, so the unit can reliably feed legacy GPUs with 6-pin connectors within its rated output.

How can I confirm the Zero RPM fan mode is active after building the system?

At low and medium loads the cooling fan stops completely; listen for silence or watch the fan blades — if they are stationary while the PC is idle, the mode is working.

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