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Silver 1U ATX power supply unit with rear fan grille and cable bundle

KHACHIMO

KHACHIMO 1U 250W ATX Power Supply FSP250-50FGNC FSP250-50GUB

SKU CH-DYJF-14MBY

1U ATX unit delivers 250 W with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby support enables rapid wake times and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for reduced power draw and cooler running
  • Zero RPM fan mode stops the fan at low to medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • 250 W ATX output in a 1U form factor fits compact server and workstation builds

Compact 1U ATX Power Supply

The KHACHIMO 1U unit delivers 250W of continuous power in a slim form factor designed for rackmount chassis and small-form-factor builds. It targets system integrators and IT professionals who need reliable ATX power where vertical space is limited. Modern Standby compatibility ensures rapid wake-from-sleep response for always-on deployments.

Gold Efficiency and Semi-Passive Cooling

80 PLUS Gold certification reduces waste heat and lowers operating cost across typical load ranges. The Zero RPM fan mode keeps the unit completely silent at low and medium loads by stopping the fan entirely. Resonant LLC topology with DC-to-DC conversion provides stable voltage regulation while minimising coil whine for quieter overall operation.

Replacement for Legacy 1U Units

This supply replaces older 1U ATX units that lack Modern Standby support or Gold-level efficiency, cutting idle power draw and eliminating fan noise during light workloads. The upgrade is worthwhile when deploying new motherboards that require fast sleep-state transitions or when acoustic targets demand semi-passive behaviour. It does not suit builds needing higher wattage or redundant power configurations.

Points forts

  • Modern Standby support enables rapid wake times and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for reduced power draw and cooler running
  • Zero RPM fan mode stops the fan at low to medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • 250 W ATX output in a 1U form factor fits compact server and workstation builds

Caractéristiques

TypeATX

Questions sur cet article

How do I fit this 1U 250W supply into my rack chassis?

Slide the unit into the 1U bay, secure the four mounting screws, then connect the 24-pin ATX and 4+4-pin CPU cables; the step often missed is plugging the 4+4-pin CPU connector near the socket.

What part will need attention after long-term use?

The cooling fan is the only moving part; once its bearings wear, the Zero RPM mode can no longer keep the unit silent at low load.

What limit appears first when the supply runs at high load for extended periods?

The 250W maximum output is the ceiling; sustained draw above that triggers protection shutdown.

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