PC Fan Noctua NF-P12 redux-900:The Noctua NF-P12 redux-900 epitomizes a very effective fan that has been designed specifically to regulate the air cooling system in your computer. This fan will satisfy those who do not want to be disturbed by strong lighting when working or playing in the dark, since this model is without backlighting. Another plus is the the lower cost of the fan. The 120 mm fan size makes it easy to snap into all standard computer cases. A crucial parameter is also the operating voltage, which in this case is 12 V. Youll find one fan in this package. Noctua NF-P12 redux-900 Computer Fan Key Features The airflow of 37,32 CFM is sufficient for cooling down your computer Unique and striking appearance This powerful fan includes unique bearings for smoother air flow Operating voltage: 12 V The NOCTUA Fan Is Ideal for All Types of Computer Cases In order to link up the Noctua NF-P12 redux-900, your PC should have a 3pin connector.