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

KHACHIMO

KHACHIMO 5V 40A 300W ATX power supply

SKU CH-4H8W-VH0HM

ATX power supply delivering 300 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion for clean, quiet power

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation at low loads thanks to Zero RPM fan mode
  • Clean, stable power delivery from resonant LLC with DC-to-DC conversion
  • 300 W ATX unit rated for 5 V at 40 A

KHACHIMO 5V 40A ATX power supply

This 300 W ATX unit delivers 40 A on the 5 V rail and carries 80 PLUS Gold certification for high efficiency. Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency. A Zero RPM fan mode stops the cooling 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.

Best for Modern Standby systems needing quiet.

Builders who want fast wake-from-sleep, low power draw at idle and silent running at typical desktop loads will benefit from the Gold-rated platform and fan-stop feature. Systems that require more than 300 W total output or higher current on other rails should look at a higher-capacity design.

40 A on the 5 V rail

The 5 V rail is rated at 40 A, which defines the unit’s capacity for legacy and low-voltage components. This figure is the primary constraint when matching the supply to a motherboard or backplane that draws heavily from 5 V.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation at low loads thanks to Zero RPM fan mode
  • Clean, stable power delivery from resonant LLC with DC-to-DC conversion
  • 300 W ATX unit rated for 5 V at 40 A

Specifications

TypeATX

Questions about this item

How can I confirm the 80 PLUS Gold efficiency is active after installing the KHACHIMO 300W ATX supply?

The unit meets 80 PLUS Gold certification, so it will deliver high efficiency operation with lower power consumption, less noise and cooler temperatures once powered on.

What comes with the KHACHIMO 5V 40A 300W ATX power supply and what must I source separately?

The package includes the ATX power supply unit itself; all cables and mounting screws required for your specific chassis must be obtained separately.

Which capacity of the KHACHIMO ATX line should I choose for a system that needs 5 V at 40 A?

This 300 W model provides 5 V at 40 A, matching that exact requirement; select it when your build calls for those rail specifications.

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