Kurzweil 250 uses numbered keys. Kurzweil K2000/K2000R. It covers all the needs of Fairlight users with QDOS, OS9, FLFS file systems as well as any other users by raw data image copy. If you’re looking for coping/recovering old projects from HDDs, MO disks, tapes, floppies and other formats, - that’s exactly the service you need.