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Black ATX power supply unit with fan grille and cable bundle

KHACHIMO

KHACHIMO WM-998A ATX power supply 12V6A 5V15A

SKU CH-8ETB-MR1EZ

An ATX power supply delivering 5 V at 15 A and 12 V at 6 A with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor with 12V 6A and 5V 15A output rails

ATX PSU for Modern Standby PCs

The KHACHIMO WM-998A is an ATX power supply built for systems that use Modern Standby sleep states. It delivers a 12 V rail rated at 6 A and a 5 V rail rated at 15 A. The 80 PLUS Gold certification confirms high efficiency across typical loads. This unit targets builders who want low power draw at idle and fast wake times.

Zero RPM fan with LLC resonant topology

A resonant LLC topology paired with DC-to-DC conversion supplies clean, consistent voltage and reduces coil whine. The Zero RPM fan mode stops the fan completely at low and medium loads for near-silent operation. ATX mounting fits standard chassis layouts without adaptation. The design favours quiet, cool running in everyday desktop use.

Replaces older ATX units without Gold efficiency

This supply upgrades from older ATX power supplies that lack 80 PLUS Gold efficiency and Modern Standby compatibility. The jump is worthwhile when you need lower idle consumption, faster wake-from-sleep, and quieter fan behaviour. It is not for builds that require higher 12 V or 5 V current than the 6 A and 15 A ratings provide.

Highlights

  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor with 12V 6A and 5V 15A output rails

Specifications

TypeATX

Questions about this item

What does the 80 PLUS Gold rating mean for actual power draw?

The 80 PLUS Gold certification confirms high efficiency at typical loads, so the unit wastes less electricity and runs cooler than lower-rated supplies.

What physical space does the ATX form factor require in the case?

The unit uses the standard ATX form factor, so it fits any chassis with an ATX power-supply bay.

Which cables must be connected during installation to enable Modern Standby?

Connect the 24-pin ATX and 4+4-pin CPU power cables; the DC-to-DC topology and Modern Standby support then handle low-power states automatically.

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