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Small square 40mm black cooling fan with three wires

Fans

Fans 109P0405H906 40x40x10mm case fan

SKU CH-6VMF-6SHK3

A 40 mm square, 10 mm thick 5 V case fan drawing 0.16 A with three-wire speed reporting

  • 5 V operation keeps power draw low at 0.16 A
  • 40 mm square frame fits tight chassis spaces
  • Three-wire connection enables speed monitoring
  • 10 mm slim profile suits low-clearance builds

Compact 40 mm case fan for tight builds

This 40 mm square fan fits small-form-factor cases and rack-mount enclosures where larger units cannot be installed. It runs on a 5 V supply and draws 0.16 A through a three-wire connection for speed monitoring. The 10 mm thickness keeps clearance minimal while still moving air across restricted layouts.

Low-draw thermal management with three-wire control

At 5 V and 0.16 A the motor adds little load to a system’s power budget and runs quietly in typical chassis positions. The three-wire lead allows the motherboard or controller to read RPM and adjust voltage for balanced cooling. Its slim profile suits dense component stacks without blocking adjacent slots or cables.

Highlights

  • 5 V operation keeps power draw low at 0.16 A
  • 40 mm square frame fits tight chassis spaces
  • Three-wire connection enables speed monitoring
  • 10 mm slim profile suits low-clearance builds

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 109P0405H906 fan in a 40 mm mounting frame and what step do people get wrong?

Align the 40 mm square frame with the mounting holes, then connect the three-wire lead to a 5 V header; the common mistake is reversing the polarity of the 0.16 A power line.

What maintenance will the 109P0405H906 need over its service life?

Periodically clean dust from the 40x40x10 mm blades and check the three-wire connector for secure seating; replace the unit if bearing noise appears or airflow drops.

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