Imation K 3590 cartridge
This linear, half-inch IBM 3590-compatible tape cartridge was popular in 1990s as a backup storage in some server rooms. It was quite fast and durable, most media were readable in another manufacturer's streamer. 128, 256 or 384-track formats could store 10, 20, 30, 40 or 60GB of data, as there were two types of tape: normal and extended length (called Extended High-Performance).