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

KHACHIMO

KHACHIMO 4.5V 40A 200W ATX Power Supply

SKU CH-11WN-KW4Z1

ATX power supply delivering 200 W at 4.5 V and 40 A with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Modern Standby support enables extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption
  • Zero RPM fan mode stops the fan at low loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power
  • 200W output at 4.5V and 40A supplies reliable ATX power

Purpose and fit

The KHACHIMO 4.5V 40A unit delivers 200W of ATX power for systems that need Modern Standby support. It suits builds where fast wake-from-sleep and low-load efficiency matter more than high wattage headroom.

Practical limits

The 80 PLUS Gold certification means the supply meets defined efficiency targets at typical loads, reducing waste heat and fan activity. Modern Standby compatibility enables quicker resume times, but the 200W ceiling restricts use to modest component configurations.

Build and connectors

Resonant LLC topology with DC-to-DC conversion provides stable voltage regulation and helps minimise coil whine. Zero RPM fan mode stops the fan completely at low and medium loads for near-silent operation. The ATX form factor fits standard cases and cable routing follows conventional layouts.

Highlights

  • Modern Standby support enables extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption
  • Zero RPM fan mode stops the fan at low loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power
  • 200W output at 4.5V and 40A supplies reliable ATX power

Specifications

TypeATX

Questions about this item

Should I choose the 4.5 V 40 A version or look for a different voltage rail?

This unit delivers 4.5 V at 40 A for a total of 200 W; select it only when your build specifically requires a 4.5 V primary rail.

What does the 200 W rating mean once the supply is installed in my PC?

It is the maximum continuous power the unit can provide across its 4.5 V output while maintaining 80 PLUS Gold efficiency and Modern Standby fast wake.

What interface does this supply use and what practical limit does it set?

It uses the ATX form factor, so it fits standard ATX cases and motherboards, capping your build to the 200 W, 4.5 V, 40 A output this model provides.

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