IBM Magstar MP Fast Access Linear Tape Data Cartridge, B-format. Product type: Blank data tape, Compressed capacity: 15 GB. Tape size: 0.315" (8 mm), Tape length: 6574.8" (167 m), Weight: 4.39 oz (124.5 g). Dimensions (WxDxH): 2.31 x 5.4 x 0.638" (58.8 x 137.1 x 16.2 mm), Total storage capacity: 5 GB