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

KHACHIMO

KHACHIMO DS1200DC-3 1200W power supply

SKU CH-2F23-B8C4V

An ATX power supply delivering 1200W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology for clean, quiet power

  • 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
  • ATX form factor fits standard desktop cases for straightforward installation

1200W ATX power supply for modern standby systems

The KHACHIMO DS1200DC-3 is a 1200W ATX power supply built for PCs that use Modern Standby sleep states. Its 80 PLUS Gold certification means high efficiency across typical loads, reducing waste heat and electricity draw. The resonant LLC topology with DC-to-DC conversion delivers stable voltages and supports deeper, more energy-efficient sleep states. It suits workstations and high-end desktops that need strong, clean power.

Zero RPM fan mode and coil whine reduction

At low and medium loads the cooling fan stops completely, giving near-silent operation during idle or light work. The DC-to-DC design also reduces coil whine, so the unit stays quiet even when the fan spins up under heavier demand. These features change the acoustic profile of the build without requiring extra software or manual fan curves. The result is a quieter system across a wide range of workloads.

Check ATX fit and cable reach before ordering

Verify that your case accepts a standard ATX power supply and that the cable lengths reach your motherboard, GPU and storage devices. Confirm the motherboard supports Modern Standby if you want the fast wake and low-load efficiency benefits. Ensure the 1200W capacity matches the peak draw of your components so the unit runs in its most efficient range. No adapter brackets or non-standard mounting hardware are included.

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
  • ATX form factor fits standard desktop cases for straightforward installation

Specifications

TypeATX

Questions about this item

Will the fan need replacing after continuous use?

The Zero RPM Fan Mode keeps the fan off at low and medium loads, reducing mechanical wear and extending the fan's service life.

What limits sustained output at full load?

The 1200 W rating and 80 PLUS Gold efficiency define the maximum continuous power the unit can deliver before protection circuits engage.

How much heat and noise appear during all-day operation?

At low and medium loads the fan stops completely for silent running; at higher loads the 80 PLUS Gold design keeps waste heat and fan speed lower than less efficient units.

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