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Black rectangular ATX power supply unit with fan grille

KHACHIMO

KHACHIMO 400W ATX Power Supply 80 PLUS Gold Modern Standby Zero RPM LLC DC-to-DC

SKU CH-MFG1-PFYAZ

An 80 PLUS Gold ATX unit with Modern Standby support, Zero RPM fan mode and LLC DC-to-DC topology for clean, quiet 400 W power delivery

  • TypeATX
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Modern Standby support enables faster wake from sleep
  • Zero RPM fan mode stops the fan at low loads for silent running
  • LLC resonant topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 400 W ATX output suits compact system upgrades

400W ATX Power Supply for Office Builds

This 400W ATX unit targets compact office PCs and small-form-factor upgrades. It suits builders replacing ageing OEM supplies in business desktops that need reliable power without excess capacity. The Gold efficiency rating keeps running costs low for systems that stay on all day. It is not for high-end gaming rigs or workstations demanding multiple graphics cards.

Modern Standby and Zero RPM Fan

Modern Standby compatibility lets the PC wake from sleep almost instantly while drawing minimal power at the wall. The Zero RPM mode stops the fan completely at low and medium loads, removing acoustic distraction in quiet offices. Resonant LLC topology with DC-to-DC conversion delivers stable voltages to modern low-power sleep states. Builders needing constant high airflow under heavy load should verify case ventilation separately.

Sustained Efficiency and Coil Whine Reduction

Under continuous load the 80 PLUS Gold certification ensures high conversion efficiency, so less energy becomes waste heat inside the chassis. The LLC resonant design suppresses coil whine that can become audible during long compute sessions. Steady DC-to-DC regulation protects components during extended rendering or batch processing. Systems requiring sustained output beyond 400W will need a higher-capacity supply.

Punti di forza

  • 80 PLUS Gold efficiency cuts power draw and heat
  • Modern Standby support enables faster wake from sleep
  • Zero RPM fan mode stops the fan at low loads for silent running
  • LLC resonant topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 400 W ATX output suits compact system upgrades

Caratteristiche tecniche

TypeATX

Domande su questo articolo

What is the maximum sustained power output of the 400W ATX unit?

The power supply delivers up to 400W of continuous output for sustained workloads.

How quiet is the fan during all-day operation at typical loads?

Zero RPM mode stops the fan completely at low and medium loads, while 80 PLUS Gold efficiency keeps heat and noise low even under heavier use.

Which main power connector does the unit provide for the motherboard?

It uses a standard 24-pin ATX connector to power the motherboard.

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