The HP Storage Works DAT 72 Tape Drive is the fifth generation of HPs popular DDS tape drives, built on the success of four previous generations of DDS technology & providing unprecedented levels of capacity, reliability & cost of ownership. The DAT 72 delivers a capacity of 72 GB on a single data cartridge & a transfer rate of 21.6 GB/hr (assuming a 2: 1 compression ratio). The Storage Works DAT 72 tape drive is the perfect choice for small & medium businesses, remote offices, & workgroups.