Tape LTO Ultrium-4 800GB/1600GB 20/PK High-capacity&#44; high-reliability LTO4 tape cartridge for LTO Ultrium Generation 4 storage environments Provides 800 GB storage physical capacity &#40;1.6 TB with 2&#58;1 compression&#41; Designed to help improve read&#47;write reliability by storing IBM"s statistical media read&#47;write Designed to adhere to widely supported Linear Tape-Open &#40;LTO&#41; Ultrium 4 design specifications Higher capacity per volume requires less library cartridge capacity and helps reduce backup windows by