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Small black 40mm square axial fan with three wire leads

SXDOOL

SXDOOL 160KL-04W-B49 40mm 12V 3-pin case fan

SKU CH-2G2M-QPE3W MPN 160KL-04W-B49

40 mm axial fan with 12 V 3-pin power, 5500 RPM, 5.3 CFM airflow, 25.0 dB noise and double ball bearing

  • Fan Size40mm
  • Power Connector3 Pin
  • 40mm compact size fits tight chassis spaces
  • 12V 3-pin connector works with standard motherboard headers
  • Double ball bearing rated for long service life
  • 5500 RPM delivers 5.3 CFM airflow at 25.0 dB noise

Compact 40 mm 12 V axial fan for tight spaces

This 40 mm square axial fan runs on 12 V DC and draws 0.10 A at 0.876 W. It spins at 5500 RPM, delivering 5.3 CFM of airflow and 0.136 H₂O static pressure at a rated 25.0 dB noise level. The double ball bearing design supports continuous operation in compact enclosures. Weighing 15 g, it suits builds where space is at a premium.

Three-pin connector and 10.2–13.8 V operating range

The fan uses a standard three-pin power connector and operates reliably between 10.2 V and 13.8 V. It is not suited for four-pin PWM headers or voltage-controlled headers that sit outside this range. Builders needing higher airflow, lower noise or PWM speed control should look elsewhere.

Highlights

  • 40mm compact size fits tight chassis spaces
  • 12V 3-pin connector works with standard motherboard headers
  • Double ball bearing rated for long service life
  • 5500 RPM delivers 5.3 CFM airflow at 25.0 dB noise

Specifications

Fan Size40mm
Power Connector3 Pin

Questions about this item

What does the 5500 RPM rating mean for actual airflow in a 40 mm fan?

At 5500 RPM the fan moves 5.3 CFM, which is typical for a 40 mm frame and suits spot-cooling small components or tight chassis corners.

How does the 3-pin connector limit speed control on this 12 V fan?

The 3-pin interface allows only voltage regulation, so the motherboard can vary speed between 10.2 V and 13.8 V but cannot use PWM signalling.

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