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Black rectangular ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO YM-6521B 520W ATX Power Supply 80 PLUS Gold

SKU CH-4HF1-PAXX0

A 520W ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, and a zero-RPM fan mode for silent low-load operation

  • TypeATX
  • Modern Standby support for fast wake times
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode for silent low-load operation
  • Resonant LLC with DC-to-DC for clean, stable power
  • 520 W ATX output for reliable system performance

KHACHIMO YM-6521B 520W ATX Gold PSU

This new ATX power supply delivers 520W of continuous power with 80 PLUS Gold certified efficiency. It uses Resonant LLC topology with DC-to-DC conversion to provide clean, consistent output. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. The unit is built for systems that value stable power delivery and quiet operation.

Ideal for efficient mainstream builds

This unit suits builders who want high efficiency and near-silent performance at low to medium loads thanks to the Zero RPM fan mode. It supports modern sleep states for responsive wake times. Systems requiring higher total wattage for multi-GPU configurations or extreme overclocking should look at higher-capacity units. Buyers needing modular cables for easier cable management will need a different design.

520W capacity with Gold efficiency headroom

The 520W rating comfortably handles mainstream CPUs and single mid-range graphics cards under full load. Gold certification ensures lower power consumption, less waste heat, and cooler temperatures during sustained operation. The fan remains off at low and medium loads, reducing noise to near-zero. Heavy loads approaching the maximum rating will activate active cooling and reduce the efficiency headroom available.

Points forts

  • Modern Standby support for fast wake times
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode for silent low-load operation
  • Resonant LLC with DC-to-DC for clean, stable power
  • 520 W ATX output for reliable system performance

Caractéristiques

TypeATX

Questions sur cet article

Will the KHACHIMO YM-6521B 520W ATX power supply fit and power a standard ATX motherboard and graphics card?

Yes, the unit follows the ATX form factor and delivers 520W through standard 24-pin, CPU and PCIe connectors for typical desktop builds.

Does the 80 PLUS Gold certified KHACHIMO YM-6521B work reliably with older components that draw more power at idle?

The resonant LLC topology with DC-to-DC conversion maintains stable voltages across wide load ranges, supporting legacy hardware that lacks modern sleep states.

How can I confirm the Zero RPM fan mode is active on the KHACHIMO YM-6521B after installation?

At low and medium loads the cooling fan stops completely; listen for silence and monitor temperatures to verify the mode is engaging.

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