LTO Cartridge native (uncompressed) capacity, Interchangeability and Maximum tape drive native data transfer speeds Tape Drive Operation Generation 1 cartridge Generation 2 cartridge Generation 3 cartridge Generation 4 cartridge Generation 5 cartridge Generation 6 cartridge Generation 1 Read 15 MB/sec   Write Generation 2 15 MB/sec+ 35 MB/sec Generation 3 Full high 35 MB/sec+ 80 MB/sec Half High 60 MB/sec Generation 4 80 MB/sec+ 120 MB/sec Generation 5 140 MB/sec Generation 6 160 MB/sec 100GB Native 200GB Native 400GB Native 800GB Native 1.5 TB Native 2.5 TB Native Key: = Not compatible