Noctua NF-F12 industrialPPC-2000 PWM 120mm Case fan 29 dB rpm 12 V 71,65 cfm. Noctua IndustrialPPC NF-F12 Case fan. Features : Pulse-width modulation (PWM) support, Advanced Acoustic Optimisation (AAO), flow acceleration channels, integrated anti-vibration pads, FocusedFlow.
eBay