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Small black square case fan with centre hub and blades

Fans

Fans D40BM-12C 12V 0.50A 4020 4CM case fan

SKU CH-CH2V-RJZKB

A 40 mm case fan running at 12 V and 0.50 A for compact cooling

  • Silent cooling for quiet systems
  • Large air volume improves case airflow
  • 12 V .50 A power draw runs efficiently
  • 40 mm 4020 form factor fits tight spaces

40 mm silent case fan

The Fans D40BM-12C is a 40 mm case fan designed to move a large volume of air while keeping noise low. It runs on a 12 V supply and draws 0.50 A, making it suitable for compact chassis or targeted component cooling. The 4020 frame profile fits standard 40 x 40 mm mounting points.

Best for tight builds and low noise

This fan suits builders who need effective airflow in a small footprint without adding audible distraction. It is not for systems that require higher static pressure for dense radiators or filters. Buyers needing larger diameters or PWM speed control should look at other models.

Highlights

  • Silent cooling for quiet systems
  • Large air volume improves case airflow
  • 12 V .50 A power draw runs efficiently
  • 40 mm 4020 form factor fits tight spaces

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the D40BM-12C 40 mm fan using its mounting holes?

Align the four screw holes on the 40 mm frame with your case or heatsink mounts, insert screws through each corner, and tighten evenly; the step people miss is checking that the airflow arrow points toward the component you want to cool.

What maintenance will the D40BM-12C 12 V 0.50 A fan need over time?

Dust the blades and frame every few months with compressed air; if bearing noise appears or airflow drops, replace the entire 4020 unit since the motor is not serviceable.

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