I can't remember the difference between 8500 and 8600 PSU's personally. I just remember that every 8500 I ever owned either popped it's PSU within weeks of me owning it OR it already had a blown PSU when I bought it. Makes me wonder if this one will even work... It looks new to be honest.
I was originally thinking CD duplicator but they appear to all be CD-ROM drives at first glance. It's weird, I've never seen one before but I guess they went out of fashion pretty quickly. There's a box of various SCSI cards in this stash so the original card could be in there?