●Provides an alluring dual ring lighting effect and is compatible with most major motherboard ARGB software. Operates at speeds of up to 1800 RPM and produces cold air up to 91.0 CFM at 2.20 mmAq static pressure. With Fluid Bearings (FDB), the fluid lubricates between the bearing and the shaft when the shaft rotates, achieving noise reduction, improved cooling performance, and reduced power consumption, providing a longer fan life. ● Innovative design dual layer fan blade consists of "main blade" and "booster blade", which allows two blades to function simultaneously to improve airflow and static pressure, minimize wind resistance and reduce noise during operation. ● PWM 4-pin design with daisy chain function allows the fan to track component temperature and change fan speed. Vibration resistant rubber pads minimize noise and suppress up to 28.10 dBA on average.