![Amazon.com: Wathai 12038 120mm x 38mm PWM Computer PC Case Fan 12V 4pin 5300rpm High Airflow Duall Ball CFM FG DC Brushless Cooling Fan : Electronics Amazon.com: Wathai 12038 120mm x 38mm PWM Computer PC Case Fan 12V 4pin 5300rpm High Airflow Duall Ball CFM FG DC Brushless Cooling Fan : Electronics](https://m.media-amazon.com/images/I/61e+-o11W1S.jpg)
Amazon.com: Wathai 12038 120mm x 38mm PWM Computer PC Case Fan 12V 4pin 5300rpm High Airflow Duall Ball CFM FG DC Brushless Cooling Fan : Electronics
![Amazon.com: DC 12V 24V 4A 2-Way Adjustable PWM Fan Speed Controller, Automatic PC CPU Case Fan Temperature Control Governor with Sensor Universal for 2 3 4-Wire DC Fan : Electronics Amazon.com: DC 12V 24V 4A 2-Way Adjustable PWM Fan Speed Controller, Automatic PC CPU Case Fan Temperature Control Governor with Sensor Universal for 2 3 4-Wire DC Fan : Electronics](https://m.media-amazon.com/images/I/51ZaMVyhzmL.jpg)
Amazon.com: DC 12V 24V 4A 2-Way Adjustable PWM Fan Speed Controller, Automatic PC CPU Case Fan Temperature Control Governor with Sensor Universal for 2 3 4-Wire DC Fan : Electronics
![Amazon.com: DC 12V 24V 48V PWM 4-Wire Fan Temperature Controller Speed Governor Display Module for PC Fan/Alarm : Electronics Amazon.com: DC 12V 24V 48V PWM 4-Wire Fan Temperature Controller Speed Governor Display Module for PC Fan/Alarm : Electronics](https://m.media-amazon.com/images/I/61NE17opZrL._AC_UF1000,1000_QL80_.jpg)