The Iceberg Thermal ICEGALE08-C0A 80mm fan offers superior performance with a rigid brass housing and dual ball bearings for a long lifecycle. Its PWM 4-pin connector enables a fan speed range from 800 to 3000 RPM, 37 CFM airflow, and 0 - 29 dBA noise level. An auto start/stop feature reduces power consumption and further decreases heat. Enjoy a product with confidence, backed by a 6-year manufacturer warranty.