https://en.wikipedia.org/wiki/VPX VPX, also known as VITA 46, is a set of standards for connecting components of a computer in defense industry.
VMEbus based connectors
can be used in 3U rack cabinet form factor or 6U rack cabinet form factor
MultiGig RT2
https://www.acromag.com/wp-content/uploads/2019/06/Introduction_to_VPX.pdf
https://www.youtube.com/watch?v=SRvbh8—cng
https://www.youtube.com/watch?v=PppdzMVnQG0 https://www.youtube.com/watch?v=DY-UTAweR9Q