TOUGHFAN 14 Pro High Static Pressure PC Cooling Fan, PWM Controlled 5002000 RPM, Air Flow 119.6 CFM, Gen.2 Hydraulic Bearing 140mm Case/Radiator Fan.Our premier TOUGHFAN 14 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 14 Pro can provide an outstanding performance of 119.6 CFM airflow, and 3.57-H2O static pressure under 31.6 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.