Cartridges are precision-manufactured to tight specifications & 100% certified. Special media formulation reduces drop-out to help improve reliability. Designed for minimal access errors to provide superior shelf life. Built-in electrostatic discharge shield helps reduce risks to data & hardware. Sealed enclosure locks out dirt & debris to protect the cartridge. For Drive Type: Mammoth ™; Compatibility: Mammoth ™; Maximum Native Data Capacity: 20 GB; Maximum Compressed Data Capacity: 40 GB.