FHANTom - the cool kid on the top FHANTom is a simple but necessary device if you want to run RISC OS on your Raspberry Pi 4 as fast as you can! With custom RISC OS software, you'll have full functionality for the HAT, allowing you to perform additional actions such as adjusting the fan speed manually, as well as automatically. Using our tried and tested custom software, you can even program when the fan adjusts its speed, giving you full control over the HAT. You can use this HAT in our PiAno case, MiniMedia case, and many other cases we make ourselves. You can also use this in any Raspberry Pi Case that offers HAT support, such as the Argon NEO. The best part is that this will work for the Raspberry Pi 4 Model B, the Raspberry Pi 3 Model B+, and the Raspberry Pi 3 B. Features • 40mm, 9 blade cooling fan to prevent overheating on the Raspberry Pi 4 and Raspberry Pi 3. • Gives an easy-to-use fan controller allowing users to decide when the HAT should adjust the fan speed. • Can change fan speed based on CPU temperature. • Provides enough space for a heat sink to be used on the chips of the Raspberry Pi board. Should you want to!