The HP Storage Works DAT 40 USB (Universal Serial Bus) Tape Drive is a dependable entry-level backup solution for smaller servers & workstations. This DDS-4 tape drive stores 40 GB of compressed data on a single cartridge at a rate of 23 GB/hr (assuming 2: 1 data compression), providing an ideal balance between capacity & performance. The USB (Universal Serial Bus) 2.0 interface provides plug-&-play connectivity, enabling backup to be initiated from straight out of the box in less than 60 seconds.