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Compact silver 1U ATX power supply unit with rear fan grille and cable connectors

KHACHIMO

KHACHIMO 250W 1U ATX Power Supply FSP250-701UH FSP250-701UJ FSP250-701US

SKU CH-KP24-HMBKK

A 250 W 1U ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby compatibility

  • TypeATX
  • Modern Standby support enables near-instant wake from sleep
  • 80 PLUS Gold certification delivers up to 80% typical efficiency at low load
  • Zero RPM fan mode stops the fan completely at low and medium loads for silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • Compact 1U ATX form factor fits space-constrained server and workstation chassis

250W 1U ATX power supply

This 250W 1U ATX unit fits compact server and workstation chassis that require a TFX-style footprint. It is built for system integrators and IT professionals who need reliable power delivery in a 1U rackmount or small-form-factor enclosure.

80 PLUS Gold efficiency and Zero RPM fan

The 80 PLUS Gold certification ensures high efficiency at typical loads, reducing waste heat and lowering overall power draw. A Zero RPM fan mode stops the fan completely at low and medium loads, delivering near-silent operation while temperatures remain controlled.

Modern Standby and LLC topology benefits

Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency for always-on responsiveness. The resonant LLC topology with DC-to-DC conversion supplies clean, consistent power, reduces coil whine, and supports deeper, more energy-efficient sleep states.

Highlights

  • Modern Standby support enables near-instant wake from sleep
  • 80 PLUS Gold certification delivers up to 80% typical efficiency at low load
  • Zero RPM fan mode stops the fan completely at low and medium loads for silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean power and reduces coil whine
  • Compact 1U ATX form factor fits space-constrained server and workstation chassis

Specifications

TypeATX

Questions about this item

How do I install this 1U ATX power supply in a rackmount chassis?

Slide the unit into the 1U bay, align the mounting holes with the chassis rails, secure all four screws, then attach the 24-pin ATX and 4-pin CPU power cables; the step often missed is confirming the IEC power cord is fully seated before powering on

What maintenance will this 250 W supply need over time?

The Zero RPM fan mode reduces wear at low load, but dust will still accumulate on the intake mesh; clean it with compressed air every six to twelve months and listen for bearing noise — if the fan becomes audible under load, plan a fan or full unit replacement

What limit appears first when this supply runs at sustained load?

The 250 W continuous rating is the hard ceiling; the 80 PLUS Gold efficiency keeps heat lower, yet prolonged operation near maximum output will raise internal temperatures until the protection circuits throttle or shut down the unit

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