[phamilton4]

Do you know if anyone makes a back-plane/carrier board (not sure on what the actual name is) for hosting/holding multiple CM4? I found a few for the CM3 but they seem a bit cost prohibitive.

[geerlingguy]

There is at least one other multiple-CM4 board 'in development', though I can't share any detail, other than keep an eye on this page for when it might appear: https://pipci.jeffgeerling.com/boards_cm

[Ductapemaster]

Not affiliated with the project in any way, but I do know this one is launching soon! https://turingpi.com/

Edit: Spoke too soon, only works with the CM3/3+. Leaving it here in case anyone is interested.

[phamilton4]

They have a v2, thanks to the user who commented after you! https://turingpi.com/v2/

[wmf]

https://turingpi.com/turing-pi-2-announcement/