I have a TK50 and M7546 (Q-bus) controller available. The drive is pretty dirty, you will HAVE to open it up and clean it before use, but it looks like it should work after that. I don't have the cable, it was from one of the boxes that had an interconnect board in the middle between all the controllers and drives. I'm in the St. Louis, MO area, and really only want to get the packing and shipping covered. Jon