These are the first generation of 720K floppy disc drives from Vortex. They came in variants having either a single drive ("S" variant) or two drives ("D" variant). The "S" variant (as well as the less expensive "Z" variant) was delivered with the same double-height casing as the "D" variant, so that a second drive could be retrofitted.
The F1-S, F1-D, M1-S, M1-D drives have their own FDC765 in the controller, and this one supports all DS0 up to DS3. The Vortex interface can manage 4 floppy drives in total.
=== F1-S and F1-D (5,25") ===
Image:Vortex f1 manual disk.jpg|F1-S/D system disk<br />(CPC 664/6128)
</gallery>
The floppy controller of the F1-D / F1-S was cloned by Hans Hübner of FutureSoft with MX4 connector and without ROM slot. It supports four drives. Under FutureOS they are named E-H.
=== A1-S Upgrade Kit (5,25") ===
Image:Vortex 3rd drive adapter plug floppy.jpg|FD-1 3" floppy drive plug
</gallery>
=== 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.
=== FDC I/O Ports ===
=== ParaDOS ===
[[ParaDOS]] has full support for supports Vortex X-drives and can be used as a replacement for the VDOS -X ROM, but lacks support of booting CP/M from drive B. There is also a patched version called VaraDOS , which is configured to use drive B as a Vortex X-drive as drive B per default.ParaDOS does not provide a way too boot CP/M from drive B. === House of Usher === Besides tape and 3 inch floppy disk release, the game [[House of Usher]] has been officially released on 5.25 inch floppy disk for the Schneider CPC with Vortex F1 floppy drive. <gallery>House of Usher ads.jpegHouse-of-usher-floppy-cover.pngHouse-of-usher-floppy-no-cover.png</gallery>
<br />