old concentrators (8 yrs old) with new PCI Xe cards

Do the old concentrators still work with the newer PCI Xe cards. I need to move from an OLD Xenix box to a new Linux box and will need a new card for sure… but do I need new concentrators?

I believe you may be referring to the Ports/em modules. If so, yes they are compatible.

Xe cable assemblies/boxes will work also.