Autolizer Sleeve Bearing 80mm Silent Cooling Fan for Computer PC Cases - High Airflow, Quite, and Transparent Clear (Red Quad 4-LEDs) - 2 Years Warranty 80mm x 80mm x 25mm | Up to 35.2 CFM (maximum RPM) | Noise (dBA) 29 dBA | Airflow (CFM) 35.2 CFM Seven fan blades and a sleeved bearing system for less vibration, noise and turbulence High static pressure for efficient radiator or heatsink cooling | RoHS compliance for protecting the environment. Tuned for high-airflow, large volume cooling! | Up to 50,000 hour life span! | 4 Pcs mounting screws included! 2 Year Warranty! # 1 Customer Service Support & Tech Support!