TDK Life on Record LTO Ultrium 1 data cartridges are a workhorse storage solution that's proven and true. With 100GB native (200GB compressed) storage capacity and a blazing 10MB per second native (20MB/s compressed) transfer rate, TDK LTO Ultrium 1 cartridges are the ideal media solution for your Ultrium 1 drive. Widely deployed in businesses throughout the world, TDK LTO Ultrium 1 data cartridges are also compatible with LTO Ultrium 2 drives.