I think it would be more feasible to install a floppy drive emulator. Something like the Gotek board, or - better - the Micro Gotek board. It needs 5V, and probably the power consumption is lower and compatible with QL PSU...Derek_Stewart wrote:
The drive needed an external power supply, as we thought the QL PSU was not powerful to power the 3.5" floppy drive.
The end result worked well, but only a single drive, no real expansion for multiple floppy drives.
http://www.eightbitclone.com/mg.html