When the power input voltage is 12V ,the centrifugal fan can be work very quiet and silent, you may hard to hear the noise of it , but it also offer you 60 CFM airflow.
High performance centrifugal cooling fan, size is 120x120x40mm. Efficiency DC/EC motor, allowing fans to consume up to 80% less energy. Moved more air at less power consumption.
The centrifugal fan with PWM function enables the motherboard to accurately run the fan at the required speed. This ensures the required cooling and minimizes noise levels.