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Small black square 40mm case fan with two wires

Fans

Fans CHA4012DB-M 40×40×20mm 12V .18A case fan

SKU CH-4CB7-SP0MQ

Compact 40×40×20 mm DC fan runs on 12 V at 0.18 A for tight chassis cooling

  • Compact 40×40×20 mm footprint fits tight chassis spaces
  • 12 V DC operation draws only 0.18 A for low power use
  • Two-wire design enables simple direct connection to fan headers
  • 4012 model delivers focused airflow for targeted component cooling

40 mm 12 V DC case fan

The CHA4012DB-M is a compact 40×40×20 mm case fan that runs on 12 V DC and draws 0.18 A. Its two-wire design provides basic cooling airflow for tight spaces inside a chassis or small enclosure. The small frame fits where larger fans cannot, making it a practical choice for targeted component cooling or replacement in legacy systems.

Fit for tight 40 mm mounts only

This fan suits builders who need a 40 mm frame with a two-wire 12 V connection. It does not meet the needs of users who require PWM speed control, higher static pressure, larger frame sizes or different voltage ratings.

How it compares

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

Price $7.99
Cheaper than about 93% 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 do I install the CHA4012DB-M fan and which step is often missed?

Mount the 40×40×20 mm frame with four screws, then connect the two-wire lead to a 12 V header; the step most people miss is checking airflow direction so the fan blows the right way.

What maintenance will the CHA4012DB-M need later?

Clean dust from the blades and vents every few months with compressed air; the sleeve bearing cannot be relubricated, so plan to replace the fan when noise or vibration increases.

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