Compatible with LTO Ultrium (LTO-1, LTO-2, LTO-3, LTO-4, LTO-5 LTO-6, LTO-7 LTO-8, LTO-9 drives. Equipped with a computer memory chip Number of cleanings per cartridge is drive dependent (maximum 50 cleanings) 5 Pack IBM LTO Ultrium Universal Cleaning Cartridges are designed specifically for use in all LTO Ultrium 1 through 9 drives and are compatible with libraries designed for LTO Ultrium 1, 2, 3, 4, 5, 6, 7, 8 and 9 drives. Rated for 50 uses. Will automatically be rejected if out of uses.