Actually I don't know about your drive a thing, but as a matter of fact I have this ugly beast lying around, which is almost same looking front cover and I was thinking the same, what is this came from (It's TEAC made as I can see)? As I tested on one of my Amigas it worked as internal drive, but when it arrived to me, it had handmade steel external case with mucho wires going everywhere inside it, very very hacky stuff, so I discarded this case. This seems very old...
