The 250MB Internal ATAPI Zip drive is completely compatible (read and write) with the millions of 100MB Zip disks that are out there today. But with the 250MB Zip drive you can also take advantage of new 250MB Zip disks to get more than twice the storage capacity of 100MB Zip disks.??Everything that makes Zip drives and disks so popular is there in 250MB Zip drive: it's lightweight, fast, secure, and dependable. And higher-capacity 250MB Zip disks mean that backing up all your stuff is easier than ever.??This drive is compatible with the following notebook systems: Dell Latitude LS, Latitude CPIR, Latitude CPTC, Latitude CPXH, Latitude CPTV, Latitude CSXH, Latitude CSR, Latitude CPI, Dell Inspiron I3700, Inspiron I3800.