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Compact 1U ATX power supply unit, matte black metal casing, rear fan grille, modular cable connectors visible

KHACHIMO

KHACHIMO SS-520H1U 520W 1U ATX power supply

SKU CH-1FXE-8ZYHM

A 520 W 1U ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Fast wake from sleep with Modern Standby support
  • High efficiency 80 PLUS Gold certification saves power
  • Silent operation via Zero RPM fan mode at low load
  • Clean, stable power from resonant LLC with DC-to-DC
  • 520 W ATX output in a 1U form factor

Compact 1U ATX power supply

The KHACHIMO SS-520H1U is a 520 W ATX unit built to the 1U form factor, making it suitable for rack-mount servers, slim workstations and other space-constrained builds that need standard ATX power in a thin chassis.

80 PLUS Gold efficiency limits

Rated at 80 PLUS Gold, the supply delivers high efficiency across typical loads, which reduces waste heat and keeps fan speeds lower; the Gold threshold does not guarantee efficiency at extremely light or peak loads beyond the certified range.

Replaces bulkier or noisier ATX units

This unit upgrades from standard-height or bronze-rated supplies when a builder needs 1U clearance, quieter operation through Zero RPM fan mode at low and medium loads, and Modern Standby support for faster wake times and deeper sleep states.

Points forts

  • Fast wake from sleep with Modern Standby support
  • High efficiency 80 PLUS Gold certification saves power
  • Silent operation via Zero RPM fan mode at low load
  • Clean, stable power from resonant LLC with DC-to-DC
  • 520 W ATX output in a 1U form factor

Caractéristiques

TypeATX

Questions sur cet article

Should I choose the 520W version for a compact 1U server build?

The SS-520H1U delivers 520W in a 1U ATX form factor, making it suitable for space-constrained servers or workstations that need reliable power within a single rack unit.

What does the 80 PLUS Gold rating mean for daily operation?

It guarantees high efficiency across typical loads, which reduces electricity use, keeps internal temperatures lower, and allows the fan to stay off longer under light demand.

How does the ATX interface work in a 1U chassis?

The unit follows the ATX specification while fitting a 1U height, so it connects to standard motherboard power connectors but requires a chassis designed for 1U power supplies.

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