Pure Wings 3 140mm PWM Case Fan High Performance Cooling Fan Compatible with Desktop Low minimum rpm Low Noise Black BL108

German Engineering I German Design I German Quality I German Performance OPTIMIZED FRAME:  The fan frame outlet designed for peak performance on radiators AIRFLOW: 7 airflow-optimized fan blades not only reduce noise, but ensure performance under demanding configurations QUIET PERFORMANCE: Pure Wings 3 can be operated with very low minimum rpm for very quiet operation LONG BEARING LIFE: Long life rifle bearing gives an operating lifetime of 80,000 hours