HP C7977A LTO7 Ultrium7 Tape 15TB RW Data Cartridge (NEW) Highest Capacity and Performance of any Comparable Tape Technology HPE LTO-7 Ultrium can write or read data at a blistering 2.5 TB/hour, storing, encrypting and protecting up to 15 TB on a single cartridge, making it the big hitter in large-scale, 24x7, mission-critical IT environments. A 64% increase in the number of tracks and a 25% increase in bit density has permitted an increase in capacity from 6.25 TB for LTO-6 to 15 TB to LTO-7: from 2,176 tracks for LTO-6 to 3,584 tracks for 7th generation HPE LTO-7 Ultrium 15 TB cartridges. LTO Ultrium cartridge memory chip delivers faster access time and enhanced media monitoring. First time restore ensured with fewer media failures and disrupted backups, regardless of duty cycle or environmental conditions.