High-capacity tapes for high-powered applications We worked with IBM to develop the next generation of half-inch tape cartridge technology. What did we come up with? The Black Watch™ 3590 and 3590E cartridges. You'll enjoy greater reliability between drive and media, faster data transfer rates, and individual capacities up to 60GB (uncompressed) in a high-capacity tape with performance that won't let you down. Proprietary backcoating: - Protects against static electricity, impressions, and scratches - Absorbs debris safely to decrease the chance for errors - Minimizes inter-layer slippage for uniform signal output