RGB Lighting: Signature cooling performance with a RGB design: a perfect choice for all of the users wanting lighting effects that are fully customizable. New Blade Design: Revised curve blade design to improve airflow and air pressure. A refreshed blade for improved lighting. Enhanced Fan Frame: Enhanced frame structure, reducing turbulent flow noise increase efficiency. Sealed Bearing Structure: Sealed and secured fan bearing, preventing dust and lubricating oil leakage while increasing the fan?s operation stability and life span.