![I swapped my two NZXT AER exhaust fans in my H500i with a Noctua NF-A12x15 120mm PWM (back) and a Noctua 140mm NF-A14 PWM (top). CPU is a few degrees cooler, but I swapped my two NZXT AER exhaust fans in my H500i with a Noctua NF-A12x15 120mm PWM (back) and a Noctua 140mm NF-A14 PWM (top). CPU is a few degrees cooler, but](https://i.redd.it/bjpv21pzblg41.jpg)
I swapped my two NZXT AER exhaust fans in my H500i with a Noctua NF-A12x15 120mm PWM (back) and a Noctua 140mm NF-A14 PWM (top). CPU is a few degrees cooler, but
![Amazon.com: Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black) : Electronics Amazon.com: Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black) : Electronics](https://m.media-amazon.com/images/I/81lN+WV9TrL.jpg)
Amazon.com: Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black) : Electronics
![Amazon.com: Noctua 140mm Premium Quiet Quality Fan with AAO Frame Technology (NF-A14 PWM) : Electronics Amazon.com: Noctua 140mm Premium Quiet Quality Fan with AAO Frame Technology (NF-A14 PWM) : Electronics](https://m.media-amazon.com/images/I/81SKpcR4GHL._AC_UF350,350_QL80_.jpg)
Amazon.com: Noctua 140mm Premium Quiet Quality Fan with AAO Frame Technology (NF-A14 PWM) : Electronics
![Amazon.com: Noctua 140mm Premium Quiet Quality Fan with AAO Frame Technology (NF-A14 PWM) : Electronics Amazon.com: Noctua 140mm Premium Quiet Quality Fan with AAO Frame Technology (NF-A14 PWM) : Electronics](https://m.media-amazon.com/images/I/81Nq74DlFWL.jpg)