These Quantum DLTtape IV 1/2-inch data cartridges are designed exclusively for DLT 4000 DLT 7000 and DLT 8000 tape drives and DLT loaders and libraries with these drives inside. Type: Storage media - DLT. Tape: Cartridge DLTtape IV. Native Capacity: 40 GB. Compressed Capacity: 80 GB. Tape Length: 557 m. Tape Record Formats DLT8000.