Continuing the SickleFlow 120 series , Cooler Master introduces a few new models with brand new upgraded design features for enhanced performance. Introducing RGB lighting more vibrant than before and certified compatible with all major motherboard manufacturers. The new Cooler Master SickleFlow 120 fan blades were created with larger blades and increased curvature to optimize the air flow and air pressure performance. Strengthen structural frame design with added rib housing for durability. Improved dustproof and oil leakage prevention for beater life expectancy. The RGB PC Fans are a must have.