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

KHACHIMO

KHACHIMO SYS-350-S28 28V 19.4A 350W 80 PLUS Gold power supply

SKU CH-1FJW-87XAB

ATX power supply delivering 28 V at 19.4 A with 350 W capacity and 80 PLUS Gold efficiency

  • TypeATX
  • Modern Standby compatible for rapid wake from sleep
  • 80 PLUS Gold certification delivers 80% efficiency at typical loads
  • 350 W output at 28 V 19.4 A powers demanding systems
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion reduces coil whine

350 W Gold ATX Power Supply

The KHACHIMO SYS-350-S28 delivers 350 W of continuous power through a 28 V output rated at 19.4 A. It targets builders assembling compact or efficiency-focused systems that require reliable ATX power with modern sleep-state support.

80 PLUS Gold Certified Efficiency

Gold certification means the unit runs at high efficiency across typical loads, reducing waste heat and fan noise. A Zero RPM mode stops the fan completely at low and medium loads, while resonant LLC topology with DC-to-DC conversion minimises coil whine and provides clean voltage regulation.

Modern Standby Compatible Upgrade

This supply replaces older units that lack Modern Standby support, enabling extremely fast wake-from-sleep times and better low-load efficiency. The jump is worth it for systems that spend long periods in sleep states or for builders who prioritise near-silent operation at idle.

Points forts

  • Modern Standby compatible for rapid wake from sleep
  • 80 PLUS Gold certification delivers 80% efficiency at typical loads
  • 350 W output at 28 V 19.4 A powers demanding systems
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion reduces coil whine

Caractéristiques

TypeATX

Questions sur cet article

What does the 80 PLUS Gold rating on this 350 W ATX supply mean for real-world efficiency?

It certifies the unit meets 80 PLUS Gold efficiency targets, so it wastes less power and runs cooler than lower-rated supplies.

What physical space and mounting does this ATX power supply require?

It uses the standard ATX form factor, fitting regular ATX cases with four rear mounting screws.

How do I install the SYS-350-S28 and what step is often missed?

Mount the unit, connect the 24-pin motherboard and CPU power cables, then verify the Zero RPM fan mode engages at low load.

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