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Small square black 40mm DC 12V double ball bearing cooling fan

TOPLAB

TOPLAB 4020 DC 12V Double Ball Fan

SKU CH-HJ9P-VN1HP

A 40 mm DC 12 V double-ball-bearing fan for computer case and power-supply cooling

  • DC 12 V power suits standard PC builds
  • 40 mm double-ball bearing spins at high speed
  • 4020 frame fits tight case or PSU slots
  • New condition means full factory performance

4020 DC 12V double ball fan

This 4020 DC 12V double ball fan is built for compact computer cases and power supply units needing focused airflow. It suits system builders who require a high-speed cooling component for tight spaces.

Sustained load behaviour

The double ball bearing design maintains consistent rotation during continuous operation, reducing wear compared to sleeve alternatives. It delivers steady airflow for prolonged cooling tasks without performance drop-off.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 88% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

How loud is the 4020 fan when running continuously?

The 4020 double ball bearing design runs at high speed on 12V power. Expect noticeable airflow noise under sustained load.

What connector does the 40mm fan need to work?

The unit requires a standard 12V DC power header. Verify your board or supply has a matching two-pin or three-pin socket.

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