Here is another tiny case for your Raspberry Pi 4 projects. The ElectroCookie RPi case has a matte black aluminum body and a neon clear acrylic color. It comes with a 4000rpm fan and large heatsink to keep your system cool. It has a noise rating of 17dBA.
This case has an adjustable brightness controller and color changing ambient light. Simply bring your RPi 4B, and you are set.