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

KHACHIMO

KHACHIMO MH-300N-24VB ATX Power Supply 12V 24V 300W 80 PLUS Gold

SKU CH-BXW8-3VTJF

An ATX power supply delivering 12V and 24V rails at 300W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode, and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Faster wake from sleep with Modern Standby support
  • High 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode gives silent running at low loads
  • Resonant LLC plus DC-to-DC delivers stable power and less coil whine
  • Dual 12 V and 24 V output rails supply up to 300 W

ATX Power Supply for Modern Standby PCs

The KHACHIMO MH-300N-24VB is an ATX power supply built for systems that require Modern Standby support. It delivers 300 W across 12 V and 24 V rails to power compatible desktop components. The unit is 80 PLUS Gold certified for high efficiency during typical workloads. Its design targets builders who want low-noise operation in a standard form factor.

Efficiency and Noise Limits at Low Loads

The 80 PLUS Gold rating guarantees at least 80 percent efficiency at defined load points, reducing waste heat and fan demand. Zero RPM mode stops the fan completely at low and medium loads for near-silent running. Resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight and minimises coil whine. These features work best when the system stays within the supply's rated capacity.

Check Connectors and Standby Requirements

Verify that your motherboard and components accept the 12 V and 24 V outputs provided by this unit. Confirm the ATX connector layout matches your board's main power and CPU power headers. Ensure the platform supports Modern Standby to use the fast wake and low-load efficiency features. This supply will not suit builds needing higher wattage or different voltage rails.

Highlights

  • Faster wake from sleep with Modern Standby support
  • High 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode gives silent running at low loads
  • Resonant LLC plus DC-to-DC delivers stable power and less coil whine
  • Dual 12 V and 24 V output rails supply up to 300 W

Specifications

TypeATX

Questions about this item

Should I pick the 12V or 24V version of this power supply?

This unit provides both 12V and 24V outputs simultaneously, so there is no separate version to choose.

What does the 300W rating mean for my actual system?

It delivers up to 300W total across its rails, suitable for compact or low-power builds running Modern Standby sleep states.

How does the 80 PLUS Gold certification affect daily use?

It guarantees high efficiency at typical loads, reducing heat and letting the fan stay off longer via Zero RPM mode.

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