The Raspberry Pi Foundation has been on a roll this year with cool new hardware: there’s the upgraded Raspberry Pi 4; the new Raspberry Pi camera; and my personal favorite: the Raspberry Pi 400, a keyboard that’s actually a fully self-contained computer.
The Raspberry Pi 4 Case Fan, as the name suggests, is only compatible with the “official†Raspberry Pi 4 case designed by the Raspberry Pi Foundation, and it’s available for $5 from the various approved retailers linked on the company’s website