PC Fan NOCTUA NF-A12x25-ULN:The NOCTUA NF-A12x25-ULN represents a highly powerful fan that is ready to regulate the air circulation in your computer. This computer fan is perfect for those who do not want to be disturbed by light from the inside of the PC in the night hours, because this model does not have any backlighting. Another plus is the the lower cost of the fan. The 120 mm fan size makes it simple to connect with all standard computer cases. Also take into account the voltage required for operation, which in this case is 12 V. There is 1 fan in this package. NOCTUA NF-A12x25-ULN Computer Fan Key Features The airflow of 32,78 CFM is sufficient for cooling down your computer Modern and striking design This quality PC fan includes special bearings for prolonged usage Operating voltage: 12 V The NOCTUA PC Fan Is Perfect for Any PC Case