Raspberry Pi 4 Eurorack module with audio, MIDI and power integration. 

Thanks! it took some hours to get listing approved. It's available now.

The depth really based on the cooling heatsinks you're going to use and if the synth I/O expansion or not. Certainly this is not for table top eurorack cases. Regarding CM4, I don't see the advantage for this particular use case, it will make my design more expensive because the daughter board requirements. BTW, there is another project that uses Pico in narrow modules, maybe it's something you need?

The easiest way is to install Patchbox OS. Here is the instruction how to configure audio output and MIDI github.com/Deftaudio/Midi-boards/blob/master/Eurorack_RPi/Eurorack_RPi_synth_kit_software_installation.pdf

Hi, it's a simple USB extension cable, something like this www.amazon.com/USB-3-0-Extension-Cable-Panel-Mount/dp/B087BK3WRB/ref=sr_1_13?keywords=usb%2Bmount%2Bextension%2Bcable&qid=1649912298&sprefix=usb%2Bmount%2Bex%2Caps%2C273&sr=8-13&th=1 or the "up" angle version (depends if you do have a space around) www.amazon.com/Panel-Extension-Haokiang-Adapter-External/dp/B07FY6Z8J7/ref=sr_1_23_sspa?keywords=usb+mount+extension+cable&qid=1649912317&sprefix=usb+mount+ex%2Caps%2C273&sr=8-23-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzUEYwTzhHTFI4TThYJmVuY3J5cHRlZElkPUEwMDMyMDAwM1BKQU9aQVZNWEVPUSZlbmNyeXB0ZWRBZElkPUEwMzU0NjIxMkM0SkszVFQyNjNVOCZ3aWRnZXROYW1lPXNwX210ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

@@DeftAudio thanks a lot!

Of course. You just get less performance.