I was going to ask if Commodore made something like this yesterday... (sure Rog...). Looks difficult to obtain and don't see any real use for it to utilize IBM cards. Still, pretty cool item!
I'm not sure but i think there were less than 20 made, I only had the Crosslink in the photos because I worked with a chap who new the guy who made them. Apparently they were mainly made so he could run a BBS with several phone lines. Was able to have lots of Rs232 cards in the ISA slots, I ran a 33k modem in the slots on my 4000. I could not get any Ethernet cards to work though.
