The be quiet! Shadow Wings 2 120mm PWM Silent Cooling Fan is engineered for low noise operation and optimized airflow, making it an ideal choice for users focused on building a quiet PC. With a maximum rotational speed of 1100 RPM, this fan achieves an airflow capacity of 38.5 CFM while maintaining a noise level of only 15.9 dB, significantly reducing acoustic noise compared to standard fans. The rubberized frame and anti-vibration mounting technology contribute to its silent performance by dampening vibrations. Coupled with high-grade rifle-bearing technology, this fan promises durability and efficiency, catering to desktop PC applications. Overall, the Shadow Wings 2 provides reliable cooling while enhancing the acoustic comfort of any build, making it a solid investment for noise-sensitive environments.