With so many Raspberry Pi models to choose from, it can be hard to know which is the best fit for your project. Here are some of the best uses for each model of Raspberry Pi.

1. The Raspberry Pi 400 exposes the ports on the rear, including a 40-pin header that matches the functionality found on the Raspberry Pi 4.

Raspberry Pi designer shows off the custom PCB for the Raspberry Pi 4 inside the new $70 Pi 400 keyboard computer.

But it was also a complete PC housed in a keyboard, which you then connected to a TV or monitor. Likewise, the Raspberry Pi 400 is PC of a different sort, with modern I/O connectivity options.