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ATX power supply unit in black metal casing with cooling fan and cable connectors

KHACHIMO

KHACHIMO ASPOWER 53.5V 401W 500W power supply

SKU CH-ZBYZ-K19EH

ATX power supply delivering 401 W continuous and 500 W peak at 53.5 V 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 faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • 5V output with 401W continuous and 500W peak power rating

ATX 500 W power supply

The KHACHIMO ASPOWER unit delivers 500 W of continuous output through an ATX form factor. It targets system builders who need Gold-rated efficiency and Modern Standby support for fast wake-from-sleep behaviour. The 53.5 V rail design suits standard desktop platforms requiring reliable power delivery.

Sustained-load behaviour

Under prolonged load the resonant LLC topology with DC-to-DC conversion maintains clean, consistent power while reducing coil whine. The 80 PLUS Gold certification ensures high efficiency across the operating range, lowering heat output and keeping temperatures in check. The zero-RPM fan mode stays active at low and medium loads, so the fan only spins when thermal demand requires it.

Pre-installation checks

Verify that your case accepts a standard ATX power supply and that the motherboard power connectors match the unit's cable set. Confirm the 500 W capacity covers the combined draw of your CPU, GPU and peripherals under full load. Ensure the 53.5 V rail specification aligns with your platform's requirements before ordering.

Highlights

  • Modern Standby support enables faster wake times and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • 5V output with 401W continuous and 500W peak power rating

Specifications

TypeATX

Questions about this item

How loud and hot does the 500 W unit get under all-day load?

The 80 PLUS Gold certification keeps efficiency high, lowering waste heat and fan speed, while Zero RPM mode stops the fan completely at low and medium loads for near-silent running.

Which motherboard connectors must my board provide for this ATX supply?

As an ATX power supply it requires the standard 24-pin main connector and 4-pin or 8-pin CPU power connector on your motherboard.

Will the 53.5 V output work with older components I plan to keep?

The 53.5 V rail is part of the DC-to-DC topology that delivers clean, consistent power compatible with legacy hardware using standard ATX voltages.

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