Imation Black Watch Extended 3590E ?K? # 40852 The Imation Black Watch Extended 3590 K Cartridge gives a performance that wont let you down. Depending on the drive it is used with, data storage capacity for the Imation K #40852 ranges from 20 GB to 60 GB native and compressed capacities from 60 GB to 180 GB. The Black Watch 3590 K cartridge has certified 128-track, 256-track, or 384-track recording capability for precise data reading and writing, and proper tracking for the entire length of tape. By utilizing a technology that is precise, it is possible for you to significantly reduce error-rates and better protect your most important data. Black Watch Extended 3590 K tapes are made with a proprietary back-coating, which absorbs debris ensuring your valuable data stays safe. An advanced metal particulate media formulation is used to gain long-lasting, high-quality recording.