Brushless PWM controllable 30MM 5V Fan allows for active cooling of Raspberry Pi. Plug and play functionality that is easy to attach to GPIO pins. Aluminum heatsink allows for proper thermal control with or without the fan in operation and helps avoid overheating. Allows full control of the fan speed by setting it at Always On or preferred intervals via the config.txt setting compatible with the following OS: Raspberry Pi OS, Ubuntu, LibreElec, and other Debian based OS. Wide compatibility with Raspberry Pi 3/4 board only and with Argon Poly+.