Apple Macintosh HDI-20 External FDD


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This FDD is designed for Macintosh Powerbook machines. Especially, the first Powerbook 100, which comes without internal floppy drive.


FDD mechanism is Sony MPF22A-01

4 thoughts on “Apple Macintosh HDI-20 External FDD

  1. Hi Pawel,
    Thanks for clarifying.

    I recently bought one of these drives for a project because (as far as I know) it is the only Apple drive which just requires 5 Volts.

    All the rest require +12, -12, +5 volts.


    Liked by 1 person

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