R4-L2R-20CK-GP Superior air flow to enhance cooling performance. 19 dBA silent application for CPU cooling. Recommended for all Cooler Master chassis. RoHS compliance for protecting the environment.
Transparent dark-gray fan blades for better LED effect. Long life sleeve bearing for longer life expectancy. Strong air flow to fortify cooling efficiency. Silent operation as an excellent choice for case cooling. RoHS compliance.
Wave Shaped and small hub dimension generate extra high airflow. DynaLoop™ Bearing:Bearing with enhanced lubricant circuits provides longer life span and performance. Anti-vibration rubber pads around the edges to decrease noise. Red LED with ruby red fan creates aggressive visual effect. Wide range PWM fan control from 800 to 2200 RPM.