Can anyone tell me anything about this external hard disk I got with my Mac Quadra? What type of cable do I need to connect it to the 25-pin SCSI connector on my Mac? Will a fully wired DB25 to DB25 parallel cable work?
You need a DB25M-DB25M fully wired, straight-through cable. It wouldn't be a parallel cable. It _might_ be a modem cable. But you really want to focus on finding SCSI-specific cables to keep yourself out of trouble.