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Rectangular ATX power supply unit in black metal casing with cooling fan and cable bundle

KHACHIMO

KHACHIMO 620W ATX Power Supply HVP620-D5401

SKU CH-14Z1-45R51

A 620 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby compatibility for fast wake times and silent low-load operation

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation at low loads with Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC and DC-to-DC topology
  • Reduced coil whine and quieter performance from advanced conversion design

620W ATX Power Supply for Hitron Systems

This 620W ATX power supply is built specifically for Hitron HVP620-D5401 platforms. It delivers 80 PLUS Gold efficiency, reducing power draw and heat output during typical workloads. The unit supports Modern Standby for rapid wake-from-sleep transitions and improved low-load efficiency. Resonant LLC topology with DC-to-DC conversion ensures clean, stable power delivery across all rails.

Suitable for Hitron replacements.

This unit suits technicians or owners replacing a failed or noisy supply in a compatible Hitron chassis. It is not for builders assembling custom ATX systems, as the connector layout and form factor are tailored to the OEM design. Buyers needing standard modular cabling or retail packaging should look at general-purpose units instead.

Direct swap installation.

Installation is a direct swap inside the original Hitron enclosure, requiring no adapter cables or case modifications. The main risk is misidentifying the exact model revision, as similar part numbers may use different pinouts or mounting tabs. Verify the HVP620-D5401 label on the old unit before fitting the replacement.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation at low loads with Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC and DC-to-DC topology
  • Reduced coil whine and quieter performance from advanced conversion design

Specifications

TypeATX

Questions about this item

What motherboard power connector does the KHACHIMO 620W ATX unit require?

It uses the standard ATX 24-pin main connector plus the 4+4-pin CPU power connector found on current motherboards.

Will the 80 PLUS Gold efficiency rating work with an older system that draws very little power at idle?

Yes, the Gold rating covers low-load efficiency and the Modern Standby design keeps wake times fast even on legacy platforms.

How can I confirm the Zero RPM fan mode is active after installation?

Under light loads the fan stops completely; you can verify silence visually or with a hardware monitor showing zero RPM.

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