Fan 4x4cm 12V

The Fan 4x4cm 12V is a compact 40 × 40 mm DC cooling fan that runs from a 12 V supply. It moves air across heat sinks and hot components to keep them at safe temperatures, and its small square frame fits tight spaces such as 3D printer hotends, project enclosures, power supplies and amplifiers.

Fan 4x4cm 12V Specifications

• Size: 40 × 40 mm (4 × 4 cm) square frame
• Rated voltage: 12 V DC
• Type: axial cooling fan with a brushless DC motor
• Mounting: 4 corner holes for screws
• Connection: wire leads to the 12 V supply

Fan 4x4cm 12V Applications

• Cooling 3D printer hotends, extruders and printed parts
• Ventilating electronics enclosures and control boxes
• Cooling heat sinks on voltage regulators, MOSFETs and motor drivers
• Airflow for small power supplies, amplifiers and chargers
• CNC controller boxes and stepper motor driver boards

What's in the Box

• 1 × 40 × 40 mm 12 V DC fan

Tip: Check the polarity: connect the positive lead (usually red) to +12 V and the negative lead (usually black) to ground, because a DC fan will not spin the wrong way round. To control it from an Arduino or ESP32, switch the 12 V supply with a transistor or MOSFET, as a microcontroller pin cannot power the fan directly.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.