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Rectangular silver ATX power supply unit with fan grille and power socket visible

KHACHIMO

KHACHIMO 300W 80 PLUS Gold ATX Power Supply

SKU CH-KPG1-YA1VN

A 300 W ATX power supply compatible with MSR3600 3660 3640 5600 systems, featuring 80 PLUS Gold efficiency, Modern Standby support and Zero RPM fan mode for silent low-load operation

  • TypeATX
  • Faster wake from sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode keeps the system silent at low loads
  • Resonant LLC plus DC-to-DC topology delivers clean, stable power
  • 300 W ATX output powers compatible workstations reliably

Modern Standby Ready 300W ATX Unit

This 300 watt ATX power supply is built for compact desktop systems that must meet Modern Standby requirements. It delivers fast wake-from-sleep performance and strong low-load efficiency for everyday office or home PCs. The 80 PLUS Gold rating ensures high conversion efficiency across typical workloads. It suits builders who need a compliant unit for small form factor cases.

Sustained Load Behaviour with LLC and DC-to-DC

Under continuous demand the resonant LLC topology paired with DC-to-DC conversion keeps voltage regulation tight and ripple low. The design maintains clean, consistent power output without the voltage drift seen in simpler group-regulated units. Coil whine is reduced even when the supply runs near its rated capacity for long periods. This topology also enables deeper, more efficient sleep states during idle intervals.

Zero RPM Fan Mode and Thermal Profile

At low and medium loads the cooling fan stops completely, providing near-silent operation for quiet environments. When load rises the fan spins up only as needed, keeping temperatures controlled without unnecessary noise. The 80 PLUS Gold efficiency reduces waste heat, so the unit runs cooler than lower-rated alternatives under the same power draw. This balance suits noise-sensitive builds where acoustic comfort matters.

Highlights

  • Faster wake from sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode keeps the system silent at low loads
  • Resonant LLC plus DC-to-DC topology delivers clean, stable power
  • 300 W ATX output powers compatible workstations reliably

Specifications

TypeATX

Questions about this item

How loud and hot does the 300W 80 PLUS Gold unit get when running all day?

The 80 PLUS Gold rating keeps efficiency high, reducing waste heat and fan speed, while Zero RPM mode stops the fan entirely at low and medium loads for near-silent operation.

What must my system already have for this ATX power supply to work?

Your case needs a standard ATX PSU mounting bay and your motherboard must accept a 24-pin ATX connector plus the required CPU power connector.

Will the Resonant LLC topology with DC-to-DC conversion work reliably with older components I keep?

Yes, the topology delivers clean, consistent power and supports modern sleep states, so it remains compatible with legacy hardware that uses standard ATX power connectors.

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