Sony's LTO 5 Library Packs feature a storage capacity of 1,500GB (1.5TB) native and 3,000GB (3.0TB) compressed, with transfer rate of 140MBsecond native (280MBsecond compressed). Sony's LTO 5 cartridges continue to evolve using the latest binder and particle technology to provide excellent reliability and performance. Library Pack configurations are ideal for large volume installations. Note that these do not come with the P-Cases, which must be ordered separately. Sony LTO 5, when reliability matters.