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Rectangular ATX power supply unit in matte black metal casing with ventilation grille and fan visible

KHACHIMO

KHACHIMO ATX 400W 80 PLUS Gold power supply

SKU CH-XAQ4-KBN20

ATX 400W power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for quiet, low-power operation

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Fan stays off at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • DC-to-DC design enables deeper, efficient sleep states

400W Gold ATX Supply

This 400W ATX power supply carries 80 PLUS Gold certification for efficient delivery across typical desktop loads. It suits builders assembling office workstations, home-theatre PCs or entry-level gaming rigs that demand reliable power without excess capacity. Modern Standby compatibility allows the system to wake from sleep almost instantly while maintaining low idle draw. The unit is not intended for high-end multi-GPU configurations or workstations requiring substantially higher wattage.

Build Integration

The standard ATX form factor fits most mid-tower and larger chassis designed for ATX power supplies. Resonant LLC topology with DC-to-DC conversion produces clean, stable rails that protect sensitive components such as CPUs, SSDs and graphics cards from voltage ripple. Zero RPM fan mode keeps the unit silent during light workloads, reducing overall system noise in quiet environments. Builders needing modular cabling or higher peak output for overclocked parts should look elsewhere.

Included Benefits

The Gold-rated efficiency lowers ongoing electricity costs and reduces waste heat, helping keep case temperatures down. Zero RPM operation eliminates fan noise at low and medium loads, a tangible advantage for media centres or bedroom PCs. Modern Standby support enables faster resume times and deeper sleep states, improving the daily experience on Windows systems that implement the feature. No extra cables or software utilities are mentioned in the specifications.

Pontos fortes

  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold certification cuts power draw and heat
  • Fan stays off at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • DC-to-DC design enables deeper, efficient sleep states

Especificações

TypeATX

Perguntas sobre este artigo

What is the first limit reached under sustained use?

The 400 W continuous output rating is the ceiling; sustained loads above that will trigger protection.

How loud and hot does it get when running all day?

Zero RPM mode stops the fan at low and medium loads for near-silent operation, and 80 PLUS Gold efficiency keeps waste heat and noise down.

What must already be in the build for this unit to work?

A standard ATX case and motherboard with 24-pin and 4/8-pin CPU power connectors are required.

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