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KHACHIMO 550W ATX power supply unit in black metal casing with cooling fan and cable bundle

KHACHIMO

KHACHIMO 550W ATX Power Supply U1A-D10550-DRB

SKU CH-HMYT-HBBEQ

Delivers 550 W ATX power with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology for quiet, stable operation

  • Product typeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power use and heat
  • Fan stops at low load for silent running
  • Resonant LLC plus DC-to-DC gives clean, stable power
  • 550 W ATX unit fits standard desktop builds

550W ATX Power Supply

The KHACHIMO U1A-D10550-DRB is a new ATX switching power supply rated at 550W. It carries 80 PLUS Gold certification for high efficiency and uses resonant LLC topology with DC-to-DC conversion for clean power delivery. Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency.

Silent Builders Seeking Efficient Sleep States

This unit suits builders who want a quiet, efficient PSU for modern sleep states. Zero RPM fan mode stops the fan at low and medium loads for near-silent operation. The resonant LLC design reduces coil whine. Buyers who need higher wattage for multi-GPU setups or extreme overclocking should look at higher-capacity units.

80 PLUS Gold Certified 550W Output

The 80 PLUS Gold rating guarantees high efficiency at typical loads, lowering power consumption, noise, and temperatures. Combined with the 550W capacity, this certification is the key indicator of whether the unit meets your build's power and efficiency requirements.

How it compares

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

Price $416.99
Pricier than about 86% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What does the 80 PLUS Gold certification mean for everyday use?

The 80 PLUS Gold rating confirms high efficiency across typical workloads, so the unit draws less AC power, runs cooler and keeps fan noise lower than less efficient models.

Which motherboard power standard does the ATX form factor follow?

As an ATX power supply it uses the standard 24-pin main connector plus 4+4-pin CPU and PCIe leads, fitting any modern desktop board that follows the ATX specification.

What physical space and mounting points does this 550W unit need inside a case?

It follows the standard ATX footprint with four rear mounting screws, so it fits any case designed for ATX power supplies without adapters or brackets.

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