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Silver rectangular 1U ATX power supply unit with ventilation grille and fan visible

KHACHIMO

KHACHIMO SS-400H1U 400W ATX power supply

SKU CH-DZTF-PTSFH

An 80 PLUS Gold ATX supply with Modern Standby support, zero-RPM fan mode and resonant LLC topology for quiet, efficient 400 W power

  • TypeATX
  • Modern Standby support for faster wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification reduces power draw, noise and operating temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and cuts coil whine
  • 400 W ATX output in a 1U form factor fits compact server and workstation builds

400W 1U ATX power supply

The KHACHIMO SS-400H1U is a compact 400W ATX power supply built for 1U rackmount chassis and small-form-factor systems. It targets builders who need reliable power delivery in space-constrained servers or workstations where standard ATX units will not fit.

80 PLUS Gold efficiency and headroom

Rated at 400W continuous output, the unit carries 80 PLUS Gold certification for high efficiency across typical loads, reducing waste heat and fan noise. Its resonant LLC topology with DC-to-DC conversion delivers stable voltages for modern components, though systems demanding sustained loads above 400W will exceed its capacity.

Modern Standby and zero-RPM operation

Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency for supported platforms. At low and medium loads the fan stops completely, providing near-silent operation, while the resonant design minimises coil whine for quieter overall performance.

Puntos fuertes

  • Modern Standby support for faster wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification reduces power draw, noise and operating temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and cuts coil whine
  • 400 W ATX output in a 1U form factor fits compact server and workstation builds

Especificaciones

TypeATX

Preguntas sobre este artículo

Will the SS-400H1U wake a Modern Standby motherboard quickly after sleep?

Yes, the unit is Modern Standby compatible, so wake-from-sleep times are extremely fast and low-load efficiency is improved.

How can I confirm the 80 PLUS Gold efficiency is active after installation?

Under typical loads the fan will remain off due to Zero RPM mode, and the system will run cooler with lower power draw, indicating high-efficiency operation.

Which cables come attached to the 400W unit and what must I source separately?

The power supply has fixed cables; any additional connectors required for your specific components will need separate adapter cables.

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