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Square black 90 mm case fan 25 mm thick

Fans

Fans KD1209PTB2 9025 12V 1.7W 90x90x25mm case fan

SKU CH-WVV8-Q4DXJ

12 V case fan with three-wire speed control in a 90 × 90 × 25 mm frame

  • 12 V operation keeps power draw low at 1.7 W
  • 90 mm square frame fits standard 9025 mounting holes
  • 25 mm thickness suits slim chassis builds
  • Three-wire connector enables speed monitoring

Compact 90 mm case fan

The Sunon KD1209PTB2 measures 90 by 90 by 25 mm and runs on 12 V power. It draws 1.7 W and uses a three-wire connector for speed monitoring. The 9025 form factor suits tight chassis layouts where larger fans cannot fit. Builders upgrading small-form-factor or legacy systems will find the dimensions a direct match.

Simple three-wire install

Mount the fan with standard 90 mm screws and plug the three-wire header into a motherboard fan connector. The third wire reports rotational speed so the BIOS can adjust voltage control. A common issue is reversed airflow if the blade curve faces the wrong way; check the arrow on the frame before securing. Another snag occurs when the header lacks voltage regulation, forcing the fan to run at full speed constantly.

How it compares

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

Price $16.99
Cheaper than about 60% 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

How can I confirm the 12 V fan is spinning correctly after installation?

Connect the three-wire lead to a motherboard header, power on the system, and verify the reported RPM in BIOS or monitoring software.

What comes in the box with the KD1209PTB2 9025 fan and what must I purchase separately?

The package includes the 90 × 90 × 25 mm fan unit only; mounting screws and any fan splitter or extension cables are sold separately.

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