This 50mm (1.97') cooling fan is a great choice for various cooling needs. It runs on just 2 simple wires (+-). With a double ball bearing design, it operates quietly and lasts a long time. You can use it in a 3D printer extruder or as a standard PC chassis cooling fan for RAM. Here are the key specs: Width is 50mm (1.97'), supply voltage is 12Vdc, current consumption is 10mA, RPM is 4500, air flow is 11.20CFM, air pressure is 0.11Inch - H2O, noise level is 33dB - A, and it weighs 20g. It's also CE/UL/Rohs certified. The shipping list includes one 50mm (1.97') fan.


Using this 50mm cooling fan is easy. First, make sure your device has a 12Vdc power supply. Connect the two wires of the fan to the power source, matching the + and - signs correctly. You can place it in your 3D printer extruder or PC chassis for RAM cooling. When using it, keep the fan in a clean environment to avoid dust accumulation. If you notice a lot of dust on the fan blades, you can use a soft brush to gently clean them. Don't use water or other liquids to clean the fan directly as it may damage the electrical components. Periodically check the fan's operation. If you hear any unusual noises or notice a decrease in air flow, it might need further inspection. This fan is CE/UL/Rohs certified, so you can trust its quality and safety.