![integrated circuit - DIY PWM Fan Controller; Speed changing too fast - Electrical Engineering Stack Exchange integrated circuit - DIY PWM Fan Controller; Speed changing too fast - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/O5XSB.png)
integrated circuit - DIY PWM Fan Controller; Speed changing too fast - Electrical Engineering Stack Exchange
![DIY 8 Channel Computer Case Fan Hub 3 Level Speed Adjustable PWM Temperature Controller for PC Case Modification SATA 4Pin 3Pin (4PIN) : Amazon.ca: Electronics DIY 8 Channel Computer Case Fan Hub 3 Level Speed Adjustable PWM Temperature Controller for PC Case Modification SATA 4Pin 3Pin (4PIN) : Amazon.ca: Electronics](https://m.media-amazon.com/images/I/61Qytwl+fTL.jpg)
DIY 8 Channel Computer Case Fan Hub 3 Level Speed Adjustable PWM Temperature Controller for PC Case Modification SATA 4Pin 3Pin (4PIN) : Amazon.ca: Electronics
![Variable Speed PWM Fan Control under $25 or less DIY - Page 10 - LS1TECH - Camaro and Firebird Forum Discussion Variable Speed PWM Fan Control under $25 or less DIY - Page 10 - LS1TECH - Camaro and Firebird Forum Discussion](https://img.sacsaabs.org/05libertycrd/05libertycrd_bmwfan.jpg)