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Small square 40 mm case fan with black frame and two power wires

Fans

Fans 4020 12V KD1204PKS3 case fan

SKU CH-28P1-PFJX8

Compact 40 mm case fan running at 12 V for targeted component cooling

  • SUNON 40 mm cooling for tight builds
  • 12 V two-wire power for simple connection
  • 4020 form factor fits compact heatsinks
  • KD1204PKS3 model ensures exact replacement match

SUNON 4020 12V heat-sink fan

The SUNON KD1204PKS3 is a 4020-format case fan that runs on 12 V power and uses a two-wire connection. It is built for builders who need a compact 12 V fan to cool small heat sinks or tight chassis spaces.

Two-wire 12 V power limit

The two-line interface supplies power only, so the fan runs at a fixed speed with no PWM control or tachometer feedback. Systems that require variable speed curves or RPM monitoring cannot use this model.

Highlights

  • SUNON 40 mm cooling for tight builds
  • 12 V two-wire power for simple connection
  • 4020 form factor fits compact heatsinks
  • KD1204PKS3 model ensures exact replacement match

Specifications

No published specifications for this item yet.

Questions about this item

Which version of the 4020 12V KD1204PKS3 fan should I choose?

The listing shows a single 12 V KD1204PKS3 model with a two-wire power connection; no alternative versions or capacities are offered.

What does the 12 V rating mean once the fan is installed in my case?

It indicates the fan is designed to run from a standard 12 volt motherboard header or fan controller, drawing its operating power directly from that rail.

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