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

KHACHIMO

KHACHIMO 775W ATX Power Supply PS-2771-3 M77050-001

SKU CH-VDAH-46X7R

Delivers 775 W of 80 PLUS Gold-certified ATX power with Modern Standby support, Zero RPM fan mode and resonant LLC topology for clean, quiet output

  • Product typeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers clean power
  • 775 W ATX output for high-performance builds

775W ATX Power Supply for Modern PCs

This KHACHIMO unit delivers 775 watts through an ATX form factor and carries 80 PLUS Gold certification for high efficiency. It targets builders who need reliable power for mainstream desktop components and want lower electricity draw at typical loads. The PS-2771-3 model includes Modern Standby compatibility so the system resumes from sleep almost instantly. It is not for users who require redundant or server-grade power modules.

Thermals, Noise and Efficiency at Typical Loads

Zero RPM fan mode stops the cooling fan completely at low and medium loads, giving near-silent operation during everyday tasks. The 80 PLUS Gold rating means less waste heat, which keeps internal temperatures lower and reduces overall system noise. Resonant LLC topology with DC-to-DC conversion supplies clean power and cuts coil whine for quieter performance. Buyers who need active cooling at all times should note the fan-off behaviour.

Behaviour Under Sustained Load

Under continuous demand the resonant LLC design maintains stable voltage regulation and consistent efficiency. DC-to-DC conversion supports deeper sleep states even during prolonged sessions, while the Gold-rated platform limits temperature rise compared with lower-tier units. The fan engages only when thermal thresholds demand it, preserving acoustic comfort. This unit is not designed for extreme overclocking scenarios that push well beyond its rated capacity.

How it compares

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

Price $534.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How do I install the KHACHIMO 775W ATX power supply and what is the common mistake?

Mount the unit in a standard ATX case, connect the 24-pin motherboard and CPU power cables, then route PCIe cables to the graphics card; the step often missed is plugging the 80 PLUS Gold unit into a grounded outlet before switching the rear I/O toggle.

What maintenance or replacement will the PS-2771-3 need later?

The Zero RPM fan mode keeps the fan off at low loads, reducing wear; plan to clean dust from the intake grill annually and replace the unit only if coil whine appears or efficiency drops below 80 PLUS Gold targets.

What limit appears first under sustained heavy load on this 775W supply?

Continuous output is capped at 775 watts; exceeding that triggers over-power protection and shuts the system down before temperatures reach critical levels.

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