Upgrade the storage capabilities of your Macintosh PowerBook G3 with a SuperDisk drive from VST. It plugs into the PowerBook G3's hot-swappable expansion bay so you can alternate between this drive and any other drives you have without needing to shutdown, sleep, or restart your system. ??This SuperDisk drive reads and writes standard 1.4MB floppy diskettes as well as 120MB Imation SuperDisks. This flexibility allows you to access all your old files still on floppies and store and share you larger files that do not fit on a single floppy diskette.