=== Clone of the F1-D controller ===
A clone of the F1-D controller was created by [[Hans Hübner]] of [[FutureSoft]] in 2024. The card fits on the Mother X4 board and doesn't contain an extra ROM slot. Using [[FutureOS]] this card allows to add four additional floppy disc drives to the CPC, being called E, F, G and H.
[[https://github.com/hanshuebner]] Github of Hans Hübner
=== FDC I/O Ports ===