On 20-10-2020 04:19, Ahem A Rivet's Shot wrote:
> On Mon, 19 Oct 2020 22:29:08 -0000 (UTC)
> Martin Gregorie  wrote:
>
>> I wonder how close in size that it to a mini-ITX motherboard and, if
>> similar, do it's hold-downs match the mounting lugs in a mini-ITX case.
>
>  It is a great deal smaller than a mini-ITX motherboard at 55mmx40mm.
> You could pack a pretty large cluster of them in a mini-ITX case with a
> little ingenuity and a good fan.

In fact that is precisely what TuringPi does (aims to do). For now their
ingenuity stops at 4, though: https://turingpi.com and
https://turingpi.com/turing-pi-2-announcement/

It seems to be an evolution of their V1 solution for the CM3 in SO-DIMM
form where they managed to get seven on the mainboard, now with four
CM4's on SO-DIMM-like adapter boards. Probably room for improvement.

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