HP StorageWorks Ultrium 960 Internal Tape Drive, StorageWorks. Native capacity: 400 GB, Compressed capacity: 800 GB. Burst transfer rate: 320 MB/s, Sustained data transfer rate (compressed): 160 MB/s, Sustained data transfer rate (native): 80 MB/s. Drive device, buffer size: 128 MB. Dimensions (WxDxH): 20.8 x 8.5 x 15 mm, Weight: 2.24 kg. Colour of product: Black