IBM 5.25 inch, 1.2 mb high density external floppy disk drive encased in a nice drive case/unit with SIGNAL CABLE (DB37 pin). IBM 4869. Used, fully tested! NICE External CASE. This unit has it's own on-off switch. These will read and write to 360K disks as well as 1.2 mb floppies. We also sell the 8 bit ISA cards these connect to in the CONTROLLERS section. We offer 8 bit ISA cards these connect to in the Controller section at this address: