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

KHACHIMO

KHACHIMO PSR550-A 550W ATX Power Supply

SKU CH-JHDT-HPAZG

ATX 550W power supply tested working, listed March 2024, model PSR550-A

  • TypeATX
  • 550 W output powers mid-range builds reliably
  • ATX form factor fits standard PC cases
  • Tested working before shipment ensures function
  • Good-quality components support stable operation
  • Listed March 2024 shows current design

Purpose and fit

The KHACHIMO PSR550-A is a 550W ATX power supply intended for desktop builders who need a tested, working unit for a standard system. It suits general computing and office workloads where a reliable power source is required. Builders who need more wattage for multi-GPU setups or high-end overclocking will find the capacity insufficient.

Thermals noise and power

The unit delivers up to 550 watts through a conventional switching design that has been verified as working before shipment. No fan specifications or efficiency ratings are provided, so acoustic output and thermal behaviour under load cannot be quantified from the available data. Power draw at the wall will match the system load plus the supply’s own conversion loss.

Included extras

The package contains only the power supply itself; no modular cables, adapters or configuration software are mentioned in the specifications. The absence of bundled accessories means cable routing and connector selection are left entirely to the builder. First listed by the manufacturer in 2024.

Highlights

  • 550 W output powers mid-range builds reliably
  • ATX form factor fits standard PC cases
  • Tested working before shipment ensures function
  • Good-quality components support stable operation
  • Listed March 2024 shows current design

Specifications

TypeATX

Questions about this item

How do I install the ATX power supply and which step is often missed?

Mount the unit in the case using four screws, connect the 24-pin motherboard cable and the CPU power cable, then flip the rear I/O switch to on; the step people forget is tightening every screw before routing cables.

What maintenance or replacement will the PSR550-A need later?

Clean dust from the intake grill and fan blades every few months with compressed air; if fan noise rises or voltages drift, replace the whole unit.

What limit appears first under sustained load on this 550W model?

The 550W continuous rating is the first ceiling; drawing more than that trips over-current protection and shuts the system down.

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