Review on 🖥️ Raspberry Pi 4 Case - Aluminum Enclosure for RPI 4 Model B - Durable Metal Shell in Black by David Butterfield

This is great. They're solid metal, have a porous top for cooling and some sort of exhaust port on the side, and (a plus for me) a recessed/hard-to-reach microSD slot. If you're going to be using the Pi 4 at customer sites or anywhere else that requires a professional look, this is the place for you. They're larger than regular Pi 4 cases, but for that reason they work well with PoE headgear that doesn't fit in standard cases. , including the GeeekPi header.