The Zip ATAPI Internal drive was created with the customers in mind. How? First of all, you don't have to be a computer wizard to install this internal drive, and it is available in both 250MB and 100MB models. For years now, people have been using Zip drives to move files between home and office. Instead of fishing for the Zip power supply and disconnecting the data cable to take your Zip drive home with you (or to the office), how about adding the Zip ATAPI Internal drive to one machine and leaving your external Zip drive connected to the other computer? That way, all you're moving is rugged, reliable Zip disks.??This drive includes 5.25 Mounting Rails, Bezel, and Tools Disk.