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

KHACHIMO

KHACHIMO MTW-5660V 660W ATX power supply

SKU CH-GJT8-MQ0GB

A 660 W ATX power supply with Modern Standby support and a zero-RPM fan mode for silent low-load operation

  • TypeATX
  • Modern Standby compatibility enables near-instant wake from sleep
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • DC-to-DC design reduces coil whine for quieter operation
  • 660 W ATX output supports mid-range system builds

660W ATX power supply for mainstream builds

The KHACHIMO MTW-5660V delivers 660 watts of continuous power through a standard ATX form factor. It targets system builders assembling mid-range desktops who need reliable output without excess capacity. The unit supports Modern Standby for rapid wake times and improved low-load efficiency. It suits typical gaming or productivity configurations with a single graphics card.

Capacity headroom for single-GPU systems

At 660W the unit comfortably handles a modern CPU paired with one mid-range graphics card and several drives. Running multiple high-end GPUs or heavily overclocked components will exceed the available headroom. The resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight across the load range. Builders planning dual-card setups or extreme overclocking should look for a higher-wattage design.

Zero RPM fan mode and quieter topology

A zero-RPM fan mode stops the cooling fan entirely at low and medium loads, removing audible noise during desktop use or media playback. The resonant LLC topology with DC-to-DC conversion further reduces coil whine for quieter operation overall. These features combine to lower acoustic output without adding external accessories. No software suite or additional cables are mentioned in the specifications.

Highlights

  • Modern Standby compatibility enables near-instant wake from sleep
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • DC-to-DC design reduces coil whine for quieter operation
  • 660 W ATX output supports mid-range system builds

Specifications

TypeATX

Questions about this item

Will the 660 W MTW-5660V run quietly with an older graphics card at idle?

Yes, the Zero RPM Fan Mode stops the fan completely at low and medium loads for near-silent operation.

How can I confirm the MTW-5660V is delivering stable power after installation?

The Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine for quieter operation.

Does the MTW-5660V support Modern Standby sleep states on an older motherboard?

Modern Standby Compatible design enables extremely fast wake-from-sleep times and better low-load efficiency.

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