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Small black 40 by 40 mm centrifugal fan with magnetic bearing

Fans

Fans KDE1204PKV3Size case fan 40×40×20 mm 12 V 0.4 W 6.8 CFM

SKU CH-SG3H-7R3H6 MPN KDE1204PKV3Size

A 40 × 40 × 20 mm 12 V magnetic-bearing fan moves 6.8 CFM at 5200 RPM with 18 dBA noise

  • Air Flow6.8CFM
  • Compact 40×40×20 mm footprint fits tight builds
  • Magnetic bearing runs at 18 dBA for quiet operation
  • 12 V, 0.4 W draw keeps power use low
  • 8 CFM airflow at 5200 RPM cools targeted spots
  • 50000-hour rated life supports long-term reliability

Compact 40 mm axial fan for tight builds

This 40 × 40 × 20 mm axial fan runs on 12 V and draws only 0.03 A for a power use of 0.4 W. It delivers 6.8 CFM at 5200 RPM while producing 18 dBA of noise. The magnetic bearing is rated for 50000 hours of service life.

Check voltage header and mounting points

Verify that your motherboard or fan controller provides a 12 V header and that the chassis has 40 mm mounting holes with 20 mm depth clearance. The two-wire lead supplies power only, so speed control depends on voltage regulation from the header. Ensure the operating range of -20 to 85 °C matches your environment.

Low noise and minimal power draw

At 18 dBA the fan is barely audible in a typical case, and the 0.4 W draw adds almost nothing to system power consumption. Magnetic bearing operation keeps friction low, helping the unit reach its rated 50000-hour lifespan. The 6.8 CFM airflow suits spot-cooling of small heatsinks or tight component zones.

Highlights

  • Compact 40×40×20 mm footprint fits tight builds
  • Magnetic bearing runs at 18 dBA for quiet operation
  • 12 V, 0.4 W draw keeps power use low
  • 8 CFM airflow at 5200 RPM cools targeted spots
  • 50000-hour rated life supports long-term reliability

Specifications

Air Flow6.8CFM

Questions about this item

What comes in the box and do I need to buy a power cable or mounting screws separately?

The fan unit itself is supplied; no power cable or mounting screws are mentioned in the specifications.

Should I choose this 12 V, 0.4 W, 6.8 CFM model or a different voltage or airflow version?

This model runs at 12 V, draws 0.03 A for 0.4 W and delivers 6.8 CFM at 5200 RPM; select it when those exact figures match your cooling requirement.

What does the 6.8 CFM rating mean once the fan is installed in a case?

At 5200 RPM the fan moves 6.8 cubic feet of air per minute while producing 18 dBA, suitable for targeted spot cooling in tight 40 mm spaces.

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