![Android studio setup](https://cdn1.cdnme.se/5447227/9-3/7_64e61dfbddf2b36517292648.png)
![case fan speed controller case fan speed controller](https://ae01.alicdn.com/kf/HTB1aLjTKpXXXXaoaXXXq6xXFXXXa/5pcs-lot-GKD-Pci-fan-speed-controller-control-3pcs-computer-case-fan-nset-computer-fan-nset.jpg)
Technically, the 4-wire PC/CPU cooling fan is usually known as “4-Wire Pulse Width Modulation Controlled Fan”. I want to review common 4-wire PC/CPU cooling fan systems.
![case fan speed controller case fan speed controller](https://ae01.alicdn.com/kf/HTB1x3fzKhSYBuNjSsphq6zGvVXaQ/New-4-Channel-Speed-Fan-Controller-with-Blue-Red-LED-Computer-case-CPU-fan-speed-controller.jpg)
The module, specifically designed for standard 12V (4-wire) PC/CPU cooling fans, naturally lets you regulate the fan speed through pulse width modulation (PWM) technique. Its electronics can control the fan speed automatically with the temperature level, and it also has a fan stall alarm feature. The HW-585 module is a low cost, yet cheerful minuscule prewired circuit board with a small microcontroller at its core to control the speed of three 4-wire PC cooling fans (CPU cooling fans) at ease. Today I will be talking about the HW-585 PC CPU Fan Speed Controller. This post is a quick sequel of my previous article jam-packed with my personal experiences and observations while I was fiddling with standard 4-wire PC cooling fans.
![Android studio setup](https://cdn1.cdnme.se/5447227/9-3/7_64e61dfbddf2b36517292648.png)