Fans MGT4012VB-028Voltage 12V 0.8A 40x40x28mm case fan

40×40×28 mm 12 V case fan

This 40 mm square frame fan is 28 mm thick and runs on 12 V at 0.8 A for 9.6 W. It uses a double ball bearing and ships with a 4 cm cable ending in a standard fan interface. The supplier lists it for medical, rail, industrial and vehicle cooling applications.

Builders needing a compact 12 V axial fan

Suits tight enclosures that accept a 40×40×28 mm footprint and a 4 cm lead. Not for systems requiring PWM speed control, larger airflow volumes, or longer cable reaches. Buyers who need a different voltage, bearing type or mounting pattern should look elsewhere.

Check voltage, mounting holes and header

Verify the board or controller supplies 12 V and can deliver 0.8 A on the fan header. Confirm the chassis has 40 mm mounting centres and enough clearance for the 28 mm depth. Ensure the 4 cm cable can reach the header without extension.