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Compact 1U flex ATX power supply, matte black metal casing with rear fan grille

KHACHIMO

KHACHIMO ITX FLEX NAS 1U 300W Power Supply SO-350PSU

SKU CH-Y8YE-MJA46

A 300 W Flex-ATX unit with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for compact NAS builds

  • TypeATX
  • Modern Standby support for rapid wake-from-sleep and low-load efficiency
  • 80 PLUS Gold certified for reduced power draw, heat and noise
  • Zero RPM fan mode stops the fan at low and medium loads for silent running
  • Resonant LLC with DC-to-DC conversion delivers clean power and less coil whine
  • Compact 1U 300 W ATX form factor fits small-form-factor and NAS builds

Compact 1U Power for ITX NAS Builds

The KHACHIMO ITX FLEX NAS SO-350PSU is a new 300W ATX power supply designed for 1U rackmount and small-form-factor NAS enclosures. It suits builders assembling storage servers or compact workstations where vertical space is at a premium. Buyers needing higher wattage for multi-GPU arrays or full-tower builds should look elsewhere.

ATX Compatibility with Modern Standby Support

This unit follows the ATX form factor and connects to standard motherboard and drive cables, fitting directly into compatible ITX cases and 1U chassis. Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency. The DC-to-DC topology delivers clean power to sensitive storage controllers while freeing up thermal headroom in tight enclosures.

Gold Efficiency and Silent Operation Under Load

The 80 PLUS Gold certification ensures high efficiency across typical NAS workloads, reducing heat output and electricity draw during sustained operation. Resonant LLC topology with DC-to-DC conversion maintains stable voltages and minimises coil whine when drives spin up simultaneously. Zero RPM fan mode keeps the unit silent at low and medium loads, activating cooling only when sustained demand requires it.

Pontos fortes

  • Modern Standby support for rapid wake-from-sleep and low-load efficiency
  • 80 PLUS Gold certified for reduced power draw, heat and noise
  • Zero RPM fan mode stops the fan at low and medium loads for silent running
  • Resonant LLC with DC-to-DC conversion delivers clean power and less coil whine
  • Compact 1U 300 W ATX form factor fits small-form-factor and NAS builds

Especificações

TypeATX

Perguntas sobre este artigo

What continuous power output can this 300 W unit sustain in a 1U NAS enclosure?

The unit is rated for 300 W continuous output, matching the SO-350PSU nameplate for small-form-factor NAS builds.

How quiet is the fan during all-day operation at typical NAS loads?

Zero RPM mode stops the fan completely at low and medium loads, while 80 PLUS Gold efficiency keeps heat low so the fan stays off longer.

Which motherboard power connectors must already be present for this Flex ATX supply to work?

Standard ATX 24-pin main connector plus the CPU and peripheral cables included with the unit are required on the target board.

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