Ah I see I misread the question , if it is a standard IDE drive then you can do anything you want if there is some kind of proprietary circuits on the controller then no you would not be able to use it. I think the Apple site could answer that question they should still have the specs of the machine laying around on a page somewhere. Now just to be sure here your goal is to use this drive in the x86 machine with knoppix installed on it not in a mac right. The final install size is 2.2GB so if the drive works in an x86 machine then you have more than enough room.