Custom Multi Axis Control Board for 3x Maxon EPOS 50/5 Controllers

We can't say much on this board.  We are unable to find any technical information on it whatsoever.  The thing we can say is there were 3 Maxon EPOS 50/5 boards mounted to it, which are now available in a separate listing. This would be a highly technical purchase to try to get to work.  So please keep that in mind.  We do not know if it needs additional boards in order to be fully functional. We do have some other boards available from this project in separate listings.  Please reach out for more details, if interested. Due to the technical nature of this board, we cannot accept returns.  We can't have someone tinkering with it on our dime, only to not know how to get it to work.   Thank you!