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Rectangular black ATX power supply unit with fan grille visible

KHACHIMO

KHACHIMO AS520N 650W power supply

SKU CH-1VPT-9FEEN

ATX power supply delivers 650 W with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Modern Standby support enables ultra-fast wake-from-sleep transitions
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler running
  • 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 power and reduces coil whine
  • ATX form factor fits standard desktop builds with 650W continuous output

KHACHIMO AS520N 650W ATX Power Supply

This ATX power supply delivers 650W of continuous power for desktop PCs. It targets builders who want high efficiency and quiet operation in a standard form factor. The unit suits mainstream gaming rigs and productivity workstations. It is not for systems requiring higher wattage or server-grade redundancy.

80 PLUS Gold Efficiency and Zero RPM Fan

Gold certification means lower energy waste, less heat and reduced fan noise under typical loads. The Zero RPM mode stops the fan completely at low and medium loads for silent running. Resonant LLC topology with DC-to-DC conversion supplies clean power and minimises coil whine. Modern Standby support enables faster wake times and deeper sleep states.

Modern Standby Compatibility and Topology Benefits

The Modern Standby design works with compatible motherboards to accelerate wake-from-sleep and improve low-load efficiency. LLC resonant conversion and DC-to-DC stages keep voltage stable across varying demands. These features reduce acoustic noise and support energy-efficient sleep modes. No extra cables or software utilities are mentioned in the specifications.

How it compares

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

Price $217.99
Pricier than about 66% of the 10,869 comparable items (median $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

Does the ATX form factor of the AS520N fit standard ATX cases?

Yes, the ATX form factor matches standard ATX case mounting holes and dimensions for a direct fit.

What clearance does the 650W unit need inside the case?

Allow the depth specified for a standard ATX power supply plus cable-bend radius behind the rear panel.

How is the AS520N installed and which step is often missed?

Mount with four screws, connect the 24-pin ATX, CPU and GPU cables, then set the rear power switch to on before booting.

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