The Chieftec ZF-1425PWM is a 140mm PC case fan designed to maintain optimal temperatures within your computer chassis. It utilizes a hydraulic bearing and plastic construction for both the enclosure and blades, ensuring a stable operation that moves 56.4 CFM of air at a speed of 1200 RPM. With a noise level of 20.1 dBA and an air pressure of 0.83 mmH2O, this black fan provides a quiet cooling solution for users who want to keep their components cool without significant acoustic distraction. It connects via a 4-pin PWM interface, allowing your system to automatically adjust the speed based on thermal needs within a voltage range of 9.0V to 13.2V. The package includes the fan and four mounting screws for a straightforward installation into any compatible case.