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Compact 1U 400W power supply unit with matte metal finish and rear fan grille

KHACHIMO

KHACHIMO AIO FLEX NAS Small 1U K39 400W Power Supply DPS-400AB-12A

SKU CH-7NHK-BA0KB

A 400 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for quiet, low-power NAS builds

  • TypeATX
  • Fast wake and efficient sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant plus DC-to-DC design delivers clean power and reduces coil whine
  • 400 W ATX unit fits 1U K39 small-form-factor builds

KHACHIMO 400W 1U Flex ATX Supply

This KHACHIMO DPS-400AB-12A is a new 400 watt ATX power supply in a compact 1U form factor. It targets builders assembling small form factor NAS or server chassis such as the K39 platform. The unit carries 80 PLUS Gold certification and supports Modern Standby for rapid wake times. Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine.

Ideal for Compact NAS Builds

This supply suits integrators who need efficient, quiet power in a 1U enclosure and value zero RPM fan mode at low loads. It is not for builders who require higher wattage for discrete graphics cards or multi-drive arrays beyond the 400 watt limit. Systems needing redundant hot-swap modules or a different physical footprint should look elsewhere.

400 Watt Continuous Output

The single specification that decides fit is the 400 watt continuous rating. Verify that your total system draw under full load stays within this ceiling before purchase.

Highlights

  • Fast wake and efficient sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant plus DC-to-DC design delivers clean power and reduces coil whine
  • 400 W ATX unit fits 1U K39 small-form-factor builds

Specifications

TypeATX

Questions about this item

What does the 400W rating mean once the unit is installed in a real machine?

It supplies up to 400 watts of continuous power to all components, with 80 PLUS Gold efficiency reducing waste heat and keeping fan noise low under load.

What interface does this power supply use and what does it limit in practice?

The ATX form factor determines which cases and motherboards it fits, capping physical compatibility to standard ATX layouts.

What physical space and mounting does this 1U unit need to fit?

It requires a 1U rack or chassis slot with ATX mounting holes and enough depth for the 400W switching design.

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