HP DAT 72 USB in 1U Rack-mount Kit. Native capacity: 72; , compressed 2:1 GB. Drive device, buffer size: 8; Included. Data transfer rate: 21.6 Gbit/s. Standard interfaces: USB 2.0. Dimensions (WxDxH): 584.2 x 279.4 x 838.2 mm, Weight: 17.24 kg