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Rectangular ATX power supply unit in matte black finish

KHACHIMO

KHACHIMO R840 80 PLUS Gold ATX power supply

SKU CH-7JNT-2P9ED

ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode, Modern Standby support and part numbers R840 0C6464 C6464 0CN801 0N8WV8 0DJ25F 0FFRK9 0F92V0

  • TypeATX
  • Modern Standby compatibility for near-instant wake and better low-load efficiency
  • 80 PLUS Gold certified efficiency reduces power draw, noise and heat
  • Zero RPM fan mode stops the fan at low and medium loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and cuts coil whine
  • ATX form factor fits standard desktop builds

KHACHIMO R840 ATX Gold Power Supply

The KHACHIMO R840 is an ATX power supply certified to 80 PLUS Gold efficiency. It is built for desktop systems that demand stable delivery and reduced energy waste during daily workloads.

Modern Standby and Zero RPM Features

Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency. Zero RPM fan mode stops the cooling fan at low and medium loads for near-silent operation while the resonant LLC topology with DC-to-DC conversion reduces coil whine.

Ideal for Quiet Efficiency-Focused Builds

This unit suits builders who prioritise quiet operation and high efficiency in a standard ATX form factor. It is not for systems requiring server-grade redundancy or specialised form factors such as SFX or TFX.

Highlights

  • Modern Standby compatibility for near-instant wake and better low-load efficiency
  • 80 PLUS Gold certified efficiency reduces power draw, noise and heat
  • Zero RPM fan mode stops the fan at low and medium loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and cuts coil whine
  • ATX form factor fits standard desktop builds

Specifications

TypeATX

Questions about this item

How often will the internal fan bearings need replacement on the R840?

The Zero RPM Fan Mode stops the fan completely at low and medium loads, so bearing wear accumulates much more slowly than on a unit that spins constantly.

What limit appears first when the R840 runs at high output for hours?

With 80 PLUS Gold efficiency the power lost as heat becomes the practical ceiling, and the fan will ramp up to manage those temperatures.

How much noise and heat does the R840 produce during an all-day workload?

At typical loads the Zero RPM mode keeps the fan off for silent operation, while Gold-rated efficiency minimises waste heat even when the fan eventually spins.

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