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

KHACHIMO

KHACHIMO R4900 G3 850W Power Supply DPS-850AB-4J

SKU CH-GKP7-EZZEJ

Delivers 850 W through an ATX design with 80 PLUS Gold efficiency, Modern Standby support, a Zero RPM fan mode and resonant LLC plus DC-to-DC topology

  • Product typeATX
  • Fast wake-from-sleep with Modern Standby compatibility
  • 80 PLUS Gold certification cuts power draw and heat
  • Zero RPM fan mode keeps operation near-silent at low loads
  • Resonant LLC topology with DC-to-DC delivers clean, stable power
  • 850 W ATX output powers demanding builds reliably

KHACHIMO R4900 G3 850W ATX Power Supply

The KHACHIMO R4900 G3 is an 850W ATX power supply built for modern desktop PCs. It carries 80 PLUS Gold certification for high efficiency, lowering power draw and heat output. A Zero RPM fan mode stops the fan completely at low and medium loads for silent running. Resonant LLC topology with DC-to-DC conversion delivers clean, stable power and reduces coil whine.

Ideal for efficient, quiet desktop builds

This unit suits builders who want Gold-rated efficiency and near-silent operation at typical workloads. Modern Standby compatibility provides extremely fast wake-from-sleep times and better low-load efficiency. It is not for systems that require a different form factor or wattage rating. Buyers needing fully modular cabling or a specific connector count not listed here should verify compatibility separately.

850W Gold ATX with Zero RPM and Modern Standby

The 850W rating defines the maximum continuous power available to components. Gold certification confirms high efficiency across the load range. Zero RPM mode enables fanless operation at low and medium loads. Modern Standby support allows faster sleep wake and deeper sleep states. Resonant LLC with DC-to-DC conversion ensures tight voltage regulation and low noise.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $559.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeATX

Questions about this item

Which KHACHIMO R4900 G3 850W version should I pick?

The DPS-850AB-4J is the single 850W ATX unit offered; choose it when your build needs 850 watts from a Gold-rated supply with Modern Standby support.

What does the 850W rating mean once the PSU is installed?

It can deliver up to 850 watts continuously to your components while maintaining 80 PLUS Gold efficiency, so the system draws less power from the wall and runs cooler.

What interface does the DPS-850AB-4J use and what does it limit?

It uses the standard ATX interface, which limits the unit to ATX-compatible cases and motherboards with 24-pin and EPS connectors.

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