Review on 💨 High Performance PC Fans - PCCOOLER 120mm Dark Night Series 3 Pack, DN-120 - Efficient Hydraulic Bearing - Low Vibration and Quiet Computer Fans for PC Case Cooling by Agonia Pedrosa

You get what you pay for. The fans aren't noisy at all even when playing at medium to high graphics, which is surprising considering they're relatively cheap. As for reducing the processor temperature, this is a mediocre task. I was still average in my 70s. As long as you have good airflow in the room and your computer is outdoors, these fans can be used. But personally I would invest in the best fans for long gaming or heavy gaming.