== X-Drives (720K) ==
These are the latest drives from Vortex for use with a CPC 464 with DDI-1 or a CPC 664/6128 (ie. on systems that already have a floppy disc controller); no additional controller was required anymore. Instead, a ROM module was supplied together with the drive, which provided VDOS 2.0-X. Only single-drive variants were available. The |S command (for accessing a third drive) is no longer used, the new |X command allows to swap drive A and B (same as [[X-DDOS]] from Dobbertin). These The F1-X(RS) models are equipped with BASF 6139 drives , which are very well designed and have solved many of compatible with the problems BASF 6138 drives of the earlier seriesprevious 5, especially in terms of compatibility25" models but have a slightly more compact design.
* [https://www.cpcwiki.eu/manuals/Vortex%20X-Laufwerke%20Manual.de.rar Vortex X-Laufwerke] {{DE}} (manual)
File:Vortex-f1-x-backside.jpg|F1-X (CPC 664) backside
File:Vortex f1-x cpc664 backside edge.jpg|F1-X (CPC 664) backside, showing edge connector
File:F1-x inside.jpg|F1-X (CPC 664) inside view, showing a BASF 6139 drive
File:F1x m1x manual.jpg|F1-X/M1-X manual and system utilities disk
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