The configuration you are asking about is the standard C28 (https://docs.modalai.com/voxl2-coax-camera-bundles/#mdk-m0173-1-03) with an addition of another hires camera.
Using MISP (not built-in ISP), VOXL2 supports as many hires cameras as can be physically connected (may run into some limitations if you are running at full resolution and encoding all streams at the same time).
C28 config uses VOXL2 + M0173 and you are left with voxl2 J8 (which has two camera ports), so we just need to add another IMX412 to voxl2 J8. The best way to do this would be using M0181 (which supports a Boson + hires camera), it would be connected like this (you can just ignore Boson):
c89b4153-c47e-4dc2-bace-baabe08fbfa1-image.png
What is not shown here is the standard C28 config (using M0173 adapter, plugged into VOXL2 J6, J7).
Just to make sure there will be enough processing resources for the three IMX412, can you briefly describe what resolution you plan to use and whether you need encoded video, etc. I could test this configuration for you.
Alex
