Changes

TO BE CONFIRMED: Does the interface fully decode US0/US1 from NEC765 and if you select unit 3 which drive is accessed.

* '''F1 - S''' Single 5.25" drive with power supply connected via ribbon cable to interface with [[FDC|NEC765]] and [[VDOS]] 1.0 or 2.11

These are less expensive ''low-capacity'' drives from Vortex, for use on CPC 664/6128 or CPC 464 with DDI-1 (ie. on computers that already have a FDC and AMSDOS). There doesn't seem to be anything special about this product, just an off-the-shelf disk drive, shipped with a CPC-specific connection cable. Since this drive fully relies on AMSDOS, only 40 tracks can be accessed.

* '''F1 - Z''' Single 5.25" drive with power supply with ribbon cable (does not come with interface containing FDC or [[VDOS]])

These are the latest drives from Vortex for use on CPC 664/6128 or CPC 464 with DDI-1 (ie. on computers that already have a FDC). 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 drives are well designed and strong. They are housed in a metal case with power supply (which has good protection with fuses) and have good quality drive mechanisms. The drive has jumpers on it that can be configured as needed.

* '''F1 - X''' Single 80 track, Double Sided, 5.25" drive with power supply and ribbon cable which connects to interface containing [[VDOS]] 2.0