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Rectangular ATX power supply unit in matte black finish with cooling fan grille visible

KHACHIMO

KHACHIMO 620W ATX Power Supply C2W-3620V-R C2W-5620V

SKU CH-RZ1Y-AXXD8

An 80 PLUS Gold 620 W ATX supply with Modern Standby support, zero-RPM fan mode and LLC resonant DC-to-DC topology for quiet, efficient power

  • Product typeATX
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode stops the fan at low load for silent running
  • Modern Standby support gives near-instant wake from sleep
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 620 W ATX output powers mainstream builds reliably

620W ATX Gold Power Supply

The KHACHIMO 620W unit delivers ATX power with 80 PLUS Gold efficiency for desktop builds. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine. A Zero RPM fan mode stops the fan at low and medium loads for near-silent operation.

Ideal for Efficient, Quiet Desktop Builds

This supply suits builders who want high efficiency and low noise in a standard ATX form factor. Modern Standby support benefits users who rely on quick sleep and wake cycles. The Gold rating helps lower power consumption and heat output. Builders needing higher wattage for multi-GPU configurations or extreme overclocking should look at larger capacity units.

80 PLUS Gold Efficiency Rating

The 80 PLUS Gold certification confirms high efficiency across typical load ranges, reducing wasted energy and operating temperature. This rating is the key specification for judging whether the unit meets your efficiency and thermal targets. Verify that 620W matches the total power draw of your planned components before purchasing.

How it compares

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

Price $240.99
Pricier than about 70% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What ATX case clearance does this 620W PSU need?

It follows the standard ATX form factor, so any case with an ATX power-supply bay will fit.

Which cables should I connect first to avoid a no-post?

Seat the 24-pin motherboard connector and the CPU 4+4-pin (or 8-pin) cable firmly before adding any peripheral cables.

When should I clean the fan to keep Zero RPM mode working?

Use compressed air on the intake grille whenever dust is visible; the fan stops at low load, so airflow depends on a clear path.

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