This 40/80GB DLT Internal SCSI Tape Drive has high storage capacity - 40GB native capacity per cartridge; up to 80GB with hardware data compression. The 40/80 DLT Internal tape drive can be easily configured to fit any environment. Simply install the unit into a 3503-BOX External FH SCSI Enclosure EL for a single external drive, or install inside the Net Media Storage Expansion Unit EL with another tape unit for a rack mount solution with multiple drives. Fast data transfer rate - 21GB/hr native transfer rate; up to 42GB/hr with hardware data compression; Ultra2 SCSI interface (LVDS).