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 120mm PWM 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