DeepCool RF12 FS RGB 120mm Fan Speed: 500~1500 RPM Fan Airflow: 56.5 CFM Fan Air Pressure: 1.66 mmAq Hydro Bearing - Fan Connector: 4-pin PWM, Pack of 3, Black: PWM ControlPWM smart adjustment allows precise speed control. Equipped with shock pads, the fan undergoes optimal operation, effectively reducing noise generation.Long-lasting BearingAdopts hydraulic self-oiling bearing, long lasting and low-noise.Powerful PerformanceOptimized 9 fan blades design, b