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Silver ATX power supply unit with 550W label and cooling fan grille

KHACHIMO

KHACHIMO PowerEdge1850 550W ATX power supply

SKU CH-YSPX-QP0RY

An ATX 550W unit with 80 PLUS Gold efficiency, Zero RPM fan mode, Modern Standby support and resonant LLC DC-to-DC topology for clean, quiet power

  • TypeATX
  • Faster wake-from-sleep with Modern Standby compatibility
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops completely at low loads for silent running
  • Resonant LLC and DC-to-DC topology deliver clean, stable power
  • 550 W ATX output for standard desktop builds

KHACHIMO 550W ATX Power Supply

The KHACHIMO PowerEdge1850 delivers 550 watts of continuous power in a standard ATX form factor. It is built for desktop builders who need reliable efficiency for modern standby sleep states and quiet daily operation.

Installation and Common Issues

The unit fits any ATX chassis using the usual four mounting screws and standard 24-pin, CPU and PCIe connectors. Zero RPM mode means the fan stays off at low and medium loads, so installers should verify the fan spins under heavy load to confirm the thermal curve is active.

Limits of the ATX Interface

ATX cabling length and connector count are fixed by the specification, so builders with oversized cases or multi-GPU layouts may find reach or plug count insufficient. The 80 PLUS Gold rating guarantees 80 to 90 percent efficiency at typical loads, but peak efficiency still depends on the AC input quality and total system draw.

Points forts

  • Faster wake-from-sleep with Modern Standby compatibility
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops completely at low loads for silent running
  • Resonant LLC and DC-to-DC topology deliver clean, stable power
  • 550 W ATX output for standard desktop builds

Caractéristiques

TypeATX

Questions sur cet article

How can I confirm the 550W unit is delivering efficient power after installation?

Monitor system stability under load and check that the 80 PLUS Gold certification badge matches the box; the resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine.

What comes with the KHACHIMO PowerEdge1850 and what must I source separately?

The package contains the PS-2521-1D power supply unit; all mounting screws and any additional cables required for your specific motherboard or GPU are not included and must be purchased separately.

Which of the listed model codes — AA23300, PS-2521-1D, X0551, JD090 or UG634 — identifies the version I should order?

All codes refer to the same 550W ATX unit; AA23300 is the supplier SKU, PS-2521-1D the manufacturer part number, and X0551, JD090, UG634 are alternate references — choose whichever matches your invoice or order confirmation.

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