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Rectangular black ATX power supply unit with side ventilation grille and rear fan visible

KHACHIMO

KHACHIMO 1850 550W ATX Power Supply 80 PLUS Gold

SKU CH-A2S7-J24J4

ATX power supply delivering 550 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • Reduces coil whine for quieter overall operation

KHACHIMO 1850 550W ATX Power Supply

The KHACHIMO 1850 is a 550W ATX power supply built for modern desktop PCs. It carries 80 PLUS Gold certification for high-efficiency operation and supports Modern Standby for extremely fast wake-from-sleep times. Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power while reducing coil whine. It suits builders who want lower power consumption and quieter performance.

Check ATX fit and Modern Standby board support

Verify that your chassis accepts a standard ATX form-factor unit and that your motherboard supports Modern Standby to use the fast wake and low-load efficiency features. Ensure the available cable complement matches your GPU, CPU and storage connectors before ordering. The Zero RPM fan mode activates automatically at low and medium loads for near-silent operation.

Sustained load efficiency and thermal behaviour

Under continuous load the 80 PLUS Gold rating keeps efficiency high, reducing waste heat and keeping internal temperatures lower. The resonant LLC design maintains stable voltage regulation during extended sessions. The cooling fan remains off until load rises above the medium threshold, so acoustics stay minimal during typical workloads. Cooler operation also contributes to longer component lifespan.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • Reduces coil whine for quieter overall operation

Specifications

TypeATX

Questions about this item

Does the KHACHIMO 1850 550W unit ship with all necessary ATX, CPU and PCIe cables for a typical build?

The 550 W ATX power supply includes the standard fixed cables required for motherboard, CPU and graphics card connections, so no separate cable kit is needed for a normal assembly.

Is the 550 watt 80 PLUS Gold model the only capacity offered in the KHACHIMO 1850 lineup?

The KHACHIMO 1850 series is presented as a 550 W 80 PLUS Gold unit; no other wattage or efficiency variants are listed for this model.

What does the 80 PLUS Gold rating mean for everyday system thermals and noise with this PSU?

Gold certification guarantees at least 90 % efficiency at typical loads, which reduces waste heat and lets the Zero RPM fan mode stay off longer during light work.

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