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

KHACHIMO

KHACHIMO MA200SH3.8 MA200SH4.5 200W ATX power supply

SKU CH-6T21-TNCHK

ATX power supply delivering 200 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology

  • TypeATX
  • Modern Standby support enables extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Dual 3.8 V 40 A and 4.5 V 40 A rails supply up to 200 W total power

200 W ATX power supply

This KHACHIMO ATX unit delivers 200 W of continuous power with dedicated 3.8 V and 4.5 V rails each rated at 40 A. It is built for compact or specialised systems that require strong low-voltage output alongside standard ATX voltages. The gold-rated design targets builders who value efficiency and quiet operation in a small-form-factor chassis.

80 PLUS Gold efficiency and semi-passive cooling

The 80 PLUS Gold certification means the supply runs at high efficiency across typical loads, reducing waste heat and overall power draw. A Zero RPM fan mode stops the fan completely at low and medium loads, delivering near-silent operation during everyday tasks. Resonant LLC topology with DC-to-DC conversion further cuts coil whine and keeps temperatures low.

Modern Standby compatibility for instant wake

Modern Standby support enables extremely fast wake-from-sleep times and improved low-load efficiency, making the unit suitable for systems that spend long periods in connected sleep states. Buyers whose motherboards or workloads do not use Modern Standby will not benefit from this feature.

Points forts

  • Modern Standby support enables extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Dual 3.8 V 40 A and 4.5 V 40 A rails supply up to 200 W total power

Caractéristiques

TypeATX

Questions sur cet article

How do I connect the 3.8V and 4.5V rails during installation?

The MA200SH3.8 and MA200SH4.5 deliver 40 A each on the 3.8 V and 4.5 V rails respectively; ensure the ATX connector is fully seated and verify the correct rail is wired to the matching load to avoid cross-loading.

Which components will need replacement after extended use?

The cooling fan is the primary wear item; Zero RPM Fan Mode keeps it off at low and medium loads, reducing hours, but plan to replace the fan when bearing noise appears.

At what load does the fan spin up under sustained operation?

The fan remains off at low and medium loads via Zero RPM Fan Mode and only spins up when the load exceeds the medium threshold, so sustained high-load output triggers active cooling first.

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