Hi there - a little while ago, I tore down a non-working 9600 (sad ... I was really hoping that I could resurrect it) and it turns out that it was something of a custom "Avid Model." I genuinely don't know what this means other than when the system boots up, it has a huge AVID splash screen ... unfortunately, it never made it much further than that. I still have the HD and pulled these cards and will try to insert them in another SCSI-Based PCI power mac when I stumble upon one.
Anyway - I don't really know much about digidesign / avid being a MOTU / Logic guy but I am curious to see if anybody can help me identify what these cards are and what they are supposed to do. I've attached a few pics. The second picture shows one card with a daughter card on it - I then took it apart for the third picture.
Thanks!