<drives, normally packaged externally to the cardcage, was most often a <50-pin flat cable, though a 37 could have handled the task if you didn't <mind that there was not a ground for every signal. The early FDD's were True. <typically hard sectored and used more signals than were required by the <later models. Not always true. If the FDD internal data seperator was used hard sector added 0 (sector holes in same cylinder as hub) or one line (sector holes at perimeter) depending on model. <The insides of the ALTAIR FDD box were not simple and clean like their <successors. Not really. It was pretty vanilla. the board set was a horror. ;) Allison