Keep critical archives fixed in place with HPE LTO-7 Ultrium WORM media. This cartridge is built for retention-heavy workflows where data integrity matters more than rewrite flexibility. With 6.25 TB native capacity and up to 15 TB compressed capacity, it gives backup teams room to store large datasets, compliance records, and recovery points on a single cartridge. LTO-7 performance supports a native transfer rate of 315 MB/s and a compressed transfer rate of 750 MB/s, helping backup windows stay predictable on compatible tape systems. The WORM format is designed for write-once, read-many retention, making it a strong fit for regulated archives and tamper-resistant storage policies. For organizations that still rely on tape for cost-efficient long-term retention, this HPE cartridge offers the density and media discipline expected in enterprise backup libraries. It is a practical choice when you need offline protection, stable shelf storage, and a format that supports disciplined data lifecycle management.