It's a lot like the Burroughs B-25 (AKA the Convergent NGEN).
https://archive.org/details/bitsavers_convergent5Brochure198...
Convergent extended that idea into their Megaframe, which could be expanded by adding more enclosures, each with a number of separate processors.
http://bitsavers.org/magazines/Mini-Micro_Systems/198304_Meg...
This last one lists our familiar Steve Blank as one of its authors.
It must have been a sight to behold:
https://archive.org/details/bitsavers_MiniMicroSrDigest_8947...