Autolizer Sleeve Bearing 120mm Blue LEDs Silent Cooling Fan for Computer PC Cases, CPU Coolers and Radiators, High Airflow, Quiet and Transparent - 2 Years Warranty 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 | 2 Year warranty from Autolizer authorized dealer.RoHS compliance for protecting the environment | 2 Year warranty from Autolizer authorized dealer. Tuned for high-airflow, large volume cooling! | Up to 50,000 hour life span! | 4 Pcs mounting screws included!