PC Fan Noctua NF-A12x15 PWM Chromax Black Swap:This Noctua NF-A12x15 PWM Chromax Black Swap is a highly effective computer fan that is ready to enhance the air circulation of your computer. This computer fan will satisfy those who do not want to be disturbed by strong lighting in the night hours, since this fan has no backlight. Another advantage is also the the significantly lower price. The 120 mm fan size makes it simple to fit into all standard computer cases. Also consider the operating voltage, which in this case is 12 V. There is 1 fan in this package. Noctua NF-A12x15 PWM Chromax Black Swap PC Fan Key Features The airflow of 55,44 CFM is sufficient for cooling down your computer Distinctive and original appearance This durable computer fan has unique bearings for prolonged usage Operating voltage: 12 V The NOCTUA Fan Is Perfect for Any Computer Case In order to safely connect the Noctua NF-A12x15 PWM Chromax Black Swap, you also need a 4pin PWM connector.