The Raspberry Pi, lovingly called RPi by fans, did for electronics what 3D printing did for design. It allowed almost anyone to come up with interesting, innovative, and sometimes just amusing projects that need a very small and cheap computer to function. The size of a credit card and less than $100 (going as low
The pi 5 and cm4* have pci-e lanes available. On pi5 you need a daughterboaed to use it.