Tandberg 800GB/1.6TB LTO-4 Ultrium Tape Cartridge Designed to Tandberg's high standards, this LTO-4 Ultrium tape cartridge ensures stable data reading and writing performance for high-density recording and long-lasting archiving. Technology featuring high coercivity and ceramic-armor metal particles enables the Tandberg LTO-4 Ultrium tape cartridge to deliver high output, high S/N ratio, and low and stable error rate characteristics. Tandberg Data's recording technologies also allow the recording of servo track signals with greater accuracy through the increased data track density of the Ultrium 4 format. This cartridge has passed the million-head-pass test in a high-speed Ultrium 4 drive.