Heat Sink Material: 6 Heat Pipes, Aluminium Fins, Fan Speed: 650 - 2050 RPM ± 10%, Fan Airflow: 51.88 CFM (Max), Fan Air Pressure: 2.89 mmH2O (Max), Cooler Type: Air Cooler, Heatpipes: 6, Fan MTTF: >160,000 Hours, Fan Noise Level: 27 dBA (Max), Warranty: 02 Years, RR-D6BB-20PA-R1.