Bgears 90 mm 2 Ball Bearing High Speed High Performance Fan, Translucent Black (b-PWM 90 Black 2ball)

Speed range from 500 to 4000 RPM with Excellent Airflow of up to 88 CFM9 translucent Black blades design for ultimate airflow and low noise level at only 39dBAPWM Technology with mini 4 pin 4 wire connector to connect directly to the Motherboard fan connec