== S- and D-Drives (720K/disk) ==
These are the first generation of floppy disc drives from Vortex. They came in variants having either a single ("S" variant) or two ("D" variant) DS/DD 80-track drives (BASF 6138). Initially, these drives were meant as upgrades for CPC 464 setups already equipped with a DDI-1/FD-1 drive. This resulted in a quite big controller housing inside in which the user had to install the DDI-1. In these setups, the 3-inch FD-1 drive could be connected as a third drive, ie. unlike most other floppy drive interfaces more than 2 drives could be connected (but only two drives could be used simultaneously). Later, interfaces also appeared for 664/6128 computers, which were considerably smaller.
* [[Media:Vortex Floppy Disk Station F1 für den Schneider CPC 464 - Benutzerhandbuch.pdf|Vortex Floppy Disk Station F1 für den Schneider CPC 464 - Benutzerhandbuch]] {{DE}} (manual)