TOUGHFAN 12 Pro High Static Pressure PC Cooling Fan, PWM Controlled 500-2000 RPM, Air Flow 70.8 CFM, Gen.2 Hydraulic Bearing 120mm Case/Radiator Fan.Our premier TOUGHFAN 12 Pro features an advanced blade design that provides stronger airflow and static pressure, making it ideal for high-performance applications such as chassis, air and liquid cooling, and heavy-duty operations. With new technology and craftsmanship, TOUGHFAN 12 Pro can provide an outstanding performance of 70.8 CFM airflow, and 3.19-H2O static pressure under 22.6 dB-A noise level, which greatly upgrades our TOUGHFAN series. Also, it improves the Motor Hub for TOUGHFAN Pro, we have upgraded its structure. As a result, the fan now features a full steel motor hub and a newly designed full copper housing around the bearing. This enhancement unleashes the fan’s complete capabilities, ensuring unmatched stability and durability during operation.