I just picked up 3 of these bad lads on eBay, new in box for cheap. I figure worst case scenario, I overpaid for some weird keycaps, and I've done worse than that before. The part number is CP40K16

They have a PS/2 cable. I'll tell you guys more about them when they come in the mail, but I'm wondering what I really have here. The seller did confirm they are clicky and mechanical, not the rubber dome, so there's that.
Can I transplant this board into a new chassis? I have a busted board here I could put them in to just make it look better. Or, if not transplant them into a new chassis, at least maybe use them. Again, if not, I've got some keycaps.