Noctua 150mm Premium Quiet Quality Case Cooling Fan NF-A15 PWM

The NF-A15 is a premium quality quiet 140mm fan with a round frame that complies with Noctua's AAO (Advanced Acoustic Optimization) standard.The NF-A15's frame features 120mm mounting holes (105mm spacing) and has been enlarged to 150mm width in order to provide superior performance on today's high-end CPU coolers.Featuring sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A15 further improves the renowned quiet cooling performance of the award-winning NF-P14.Noctua's custom designed PWM IC for fully automatic speed control and reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability