The be quiet! Pure Wings 3 140mm PWM high-speed is a high-performance cooling fan designed to maintain optimal temperatures within your computer chassis. It utilizes a 4-pole motor with closed loop technology and a rifle bearing, which helps the unit reach a lifespan of 80,000 hours at 25°C. With 9 airflow-optimized blades, this black fan can reach speeds up to 1800 RPM, delivering a maximum airflow of 72.2 CFM and air pressure of 2.44 mm H2O to keep your components cool during demanding tasks. Measuring 140 x 140 x 25 mm and weighing 188 g, the fan integrates easily into most cases via the included screw fixing set. The 4-pin PWM connector allows you to precisely control the speed based on your system's needs, while the maximum noise level of 30.5 dBA ensures that the cooling process remains unobtrusive. This model is a practical choice for users who need a reliable, high-speed cooling solution that balances strong airflow with a quiet acoustic profile.