The Okuma FDD Units series is a group of legacy floppy disk drive assemblies used for program storage and data transfer in older OSP control environments.
The series fits into the generation of Okuma controls that relied on removable disk media for loading NC software and transferring part programs between the machine and external systems. In practical use, these units served as part of the machine’s data-management hardware, supporting day-to-day program handling on controls built before USB- and Ethernet-based workflows became standard. The series belongs to the same legacy media architecture that Okuma later supported with dedicated floppy-to-USB replacement solutions for older machines. Taken together, the FDD Units series represents the removable-media hardware layer that helped earlier Okuma CNC platforms manage software and program exchange before newer storage and connectivity methods replaced floppy-based operation.
