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Silver ATX power supply unit with rear fan grille and cable bundle

KHACHIMO

KHACHIMO ST-352UAG-05E 350W ATX power supply

SKU CH-9GCV-JCFB2

A 350 W ATX unit with 80 PLUS Gold efficiency, Zero RPM fan mode, resonant LLC topology and Modern Standby support

  • TypeATX
  • Modern Standby support gives faster wake times
  • 80 PLUS Gold rating cuts power draw and heat
  • Zero RPM fan stops at low loads for silence
  • Resonant LLC with DC-to-DC delivers clean stable power
  • 350 W ATX capacity fits mainstream builds

350W ATX Power Supply for Modern Standby Builds

This KHACHIMO ST-352UAG-05E unit delivers 350W of continuous power in a standard ATX form factor. It targets system builders who need reliable efficiency for everyday computing and Modern Standby sleep states. The 80 PLUS Gold certification confirms high efficiency across typical loads, reducing waste heat and electricity draw.

Gold Efficiency with Zero RPM Fan Mode

Resonant LLC topology paired with DC-to-DC conversion supplies clean voltage regulation while minimising coil whine. At low and medium loads the cooling fan stops completely, enabling near-silent operation during office work or media playback. The Modern Standby compatibility ensures extremely fast wake times and improved low-load efficiency for supported platforms.

Upgrade Path for Older Bronze or Unrated Units

Replacing an older 80 PLUS Bronze or unrated supply with this Gold-rated model cuts power loss and acoustic output without changing case layout. The jump is worthwhile when building or refreshing a system that uses Modern Standby and values quiet, efficient performance at modest wattage. It is not suited for builds requiring higher continuous output or multiple high-end graphics cards.

Highlights

  • Modern Standby support gives faster wake times
  • 80 PLUS Gold rating cuts power draw and heat
  • Zero RPM fan stops at low loads for silence
  • Resonant LLC with DC-to-DC delivers clean stable power
  • 350 W ATX capacity fits mainstream builds

Specifications

TypeATX

Questions about this item

What does the 80 PLUS Gold rating mean for real-world efficiency?

The unit meets 80 PLUS Gold requirements, delivering at least 80 % efficiency at typical loads, which reduces waste heat and keeps the fan off longer under light use.

Which ATX form-factor dimensions and mounting holes does the ST-352UAG-05E use?

It follows the standard ATX footprint with four rear mounting holes, so it fits any case designed for a regular ATX power supply.

How is the power supply installed and what step is often missed?

Mount the unit with the four screws, connect the 24-pin ATX, CPU and peripheral cables, then verify the motherboard has Modern Standby enabled in BIOS so the fast wake and low-load features work.

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