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Rectangular ATX power supply unit with matte black finish and cooling fan visible on one side

KHACHIMO

KHACHIMO Power Supply 420W ATX Gold 80+ Modern Standby Zero RPM LLC DC-DC FSP420-20RDB

SKU CH-FGS1-4AX4F

A 420W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode, and LLC DC-DC topology for silent, efficient Modern Standby support

  • TypeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency cuts power use and heat with 80 PLUS Gold
  • Silent low-load operation via Zero RPM fan mode
  • Clean, stable power from LLC resonant DC-DC topology
  • 420 W ATX output for modern PC builds

420W ATX Power Supply for Modern PCs

This 420W ATX power supply delivers Gold-certified efficiency for standard desktop builds. It supports Modern Standby for rapid wake-from-sleep and uses an LLC resonant topology with DC-to-DC conversion for clean power delivery. The unit suits users who want quiet, efficient operation in a typical system configuration.

Practical Limits of ATX Gold Efficiency

The 80 PLUS Gold rating guarantees high efficiency at typical loads, reducing waste heat and fan noise. Zero RPM mode keeps the fan off at low and medium loads for near-silent operation. Modern Standby compatibility enables deeper, more efficient sleep states supported by current platforms. Very high continuous loads will still generate heat and activate the cooling fan.

420W Output Decides Suitability

The 420W maximum output determines whether this unit can power your specific components. Builds with high-end graphics cards or multiple drives may exceed this capacity. Systems requiring significantly more headroom for future upgrades should consider a higher-wattage model. Check your total system power draw before purchasing.

Punti di forza

  • Fast wake from sleep with Modern Standby support
  • High efficiency cuts power use and heat with 80 PLUS Gold
  • Silent low-load operation via Zero RPM fan mode
  • Clean, stable power from LLC resonant DC-DC topology
  • 420 W ATX output for modern PC builds

Caratteristiche tecniche

TypeATX

Domande su questo articolo

How do I choose the right capacity for the KHACHIMO 420W ATX Gold power supply?

The unit is a single 420 watt model; select it if your system's peak draw stays comfortably below that figure.

What does the 80 PLUS Gold rating mean for my daily power bill and heat output?

It guarantees at least 80 percent efficiency at typical loads, so less electricity is wasted as heat and the fan runs slower.

Which ATX standard does the FSP420-20RDB follow and what does that limit in my build?

It uses the standard ATX form factor, so it fits regular ATX cases and motherboards but will not suit small form-factor chassis requiring SFX or TFX units.

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