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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.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 90% of the 8,339 comparable items (median $19.99).

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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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