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Rectangular ATX power supply unit with matte black metal casing and rear fan grille

KHACHIMO

KHACHIMO PSF250M-20 250W ATX power supply

SKU CH-NJX2-HZS8T

ATX 250W unit with CWT SATA*4+IDE*4 PSF250M-20, 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support

  • Product typeATX
  • Modern Standby support for fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification for lower power consumption, less noise, and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and reduces coil whine
  • ATX form factor fits standard desktop builds

250 W ATX PSU for Modern Standby PCs

The KHACHIMO PSF250M-20 delivers 250 W of continuous power in a standard ATX form factor. It carries 80 PLUS Gold certification for high efficiency across typical loads. Modern Standby compatibility ensures rapid wake-from-sleep response and improved low-load efficiency. Resonant LLC topology with DC-to-DC conversion provides clean, stable output and supports deeper sleep states.

Replaces older ATX units lacking Modern Standby

This unit upgrades systems that still rely on legacy power supplies without Modern Standby support or Gold-rated efficiency. The jump is worthwhile when building or refreshing a PC that uses Windows Modern Standby and benefits from near-silent idle operation. Zero RPM fan mode stops the fan completely at low and medium loads, eliminating noise during light work. The DC-to-DC design reduces coil whine for quieter overall performance.

Check ATX fit and SATA connector count

Verify that your chassis accepts a standard ATX power supply and that the 250 W rating meets your component power budget. The unit provides twenty SATA connectors and four legacy IDE connectors for drive-heavy configurations. Ensure the cable harness reaches all drive bays and motherboard headers in your specific case layout. Buyers needing higher wattage or modular cabling should look elsewhere.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $133.99
Typical for this category: the median of 10,869 items is $142.99.

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Specifications

Product
Product typeATX

Questions about this item

Does the PSF250M-20 fit a standard ATX case?

Yes, the PSF250M-20 follows the ATX form factor and mounts in any standard ATX chassis using four rear screws.

How do I connect the SATA drives and what mistake should I avoid?

Plug each SATA power connector firmly until it clicks; a common error is leaving a connector partially seated, which causes intermittent drive power.

When should I clean the fan on the PSF250M-20?

Clean the fan intake with compressed air once dust buildup becomes visible, typically every six to twelve months depending on environment.

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