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Rectangular silver ATX power supply unit with ventilation grille and cable bundle

KHACHIMO

KHACHIMO 6Pin 550W ATX Power Supply

SKU CH-BPGA-YYYFB

ATX 550 W PSU with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for silent, low-power sleep

  • Product typeATX
  • Modern Standby support for rapid wake-from-sleep and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency, reducing power draw, noise and heat
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • 550 W ATX power supply compatible with multiple part numbers including PA-5181-3A and FSP180-10TGBAA

550W ATX Power Supply

The KHACHIMO unit delivers 550W of continuous power in a standard ATX form factor. It targets desktop builders who need reliable energy for mid-range components and Modern Standby sleep states.

80 PLUS Gold efficiency headroom

Gold certification means the supply runs at high efficiency across typical loads, reducing waste heat and fan noise. The 550W ceiling covers mainstream CPUs and single GPUs, while multi-GPU or extreme overclocking setups would exceed its capacity.

Resonant LLC topology with Zero RPM fan

A resonant LLC design paired with DC-to-DC conversion supplies clean voltage and reduces coil whine. The Zero RPM mode stops the fan completely at low and medium loads, and Modern Standby compatibility enables near-instant wake from sleep.

How it compares

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

Price $133.99
Typical for this category: the median of 10,869 items is $142.99.

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeATX

Questions about this item

Will this 550W ATX unit work with an older motherboard that still uses a 20-pin main connector?

The supply follows the ATX form factor, so it provides the standard 20+4-pin connector that fits both 20-pin and 24-pin motherboard sockets.

How can I confirm the 80 PLUS Gold efficiency is active once the PSU is installed?

At typical loads the fan will remain off thanks to Zero RPM mode, and the system should wake from sleep almost instantly, showing the Gold-rated platform is operating.

Does the box include the 6-pin PCIe cable shown in the model name, or must I buy it separately?

The 6-pin PCIe connector is native to this 550W unit, so the required cable is supplied in the box; no separate purchase is needed.

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