The Imation SLR50 MLR3 25/50GB data cartridge has up to 25GB native capacity and up to 50GB compressed capacity. The drives write in the MLR3 format at 2MB/sec in native mode for the SLR/MLR3 drive. The Imation MLR3/SLR50 tape is a 5.25" cartridge, is 1,515 feet or 462 metres long and is designed for use in an MLR3 drive and can also be read and written to in an SLR60 and SLR100 drives.

Imation have discontinued the SLR50 Data Cartridge so it is only available while stocks last.