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Black rectangular ATX power supply unit with side-mounted cooling fan and modular cable connectors

KHACHIMO

KHACHIMO 1620-G20 550W ATX Power Supply

SKU CH-WEEP-P7CNK

ATX power supply delivering 550 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion for clean power and quiet operation

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

ATX 550W Gold power supply

The KHACHIMO 1620-G20 delivers 550W of continuous ATX power with 80 PLUS Gold certification for high efficiency across typical loads. Resonant LLC topology with DC-to-DC conversion provides clean voltage regulation and supports modern sleep states. Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation. Modern Standby compatibility enables extremely fast wake-from-sleep times.

Check ATX fit and cable needs

Verify that your case accepts a standard ATX form-factor unit and that the included cable set matches your motherboard, graphics card and storage connectors. Confirm the total system power draw stays within the 550W rating before ordering. Ensure the power cord inlet and rear switch orientation suit your case layout. No adapter cables are mentioned in the specifications.

Quiet build with modern standby support

The Zero RPM fan mode and resonant LLC design reduce coil whine and keep noise to a minimum during everyday tasks. Gold-rated efficiency lowers waste heat, helping internal temperatures stay cooler under load. Modern Standby support means the supply works with the latest low-power sleep states for instant resume. Fixed cables mean cable routing depends on your case management space.

How it compares

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

Price $186.99
Pricier than about 60% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Does the KHACHIMO 1620-G20 550W ATX power supply include all necessary cables, or must any be purchased separately?

The unit ships with the standard ATX cable set required for a typical build; no additional cables are needed for normal installation.

How do I decide which version of the KHACHIMO 1620-G20 550W to buy?

Only the single 550W model is offered, so no capacity choice is required.

What does the 80 PLUS Gold rating mean for everyday use in my PC?

It guarantees high efficiency at typical loads, which lowers electricity draw, reduces heat output and helps the Zero RPM fan stay off longer for quieter operation.

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