Sony AIT (Advanced Intelligent Tape) format is intelligently engineered to stand apart - no other tape cartridge features both an MIC chip (the brains) and a pure metal magnetic layer designed for maximum capacity and longevity (the brawn). Designed for the new AIT-3 format, the SDX3-100W cartridge offers a massive 100GB native capacity, 260GB compressed. Transfer rate is an-ultra-fast 12MB/s native, 31MB/s compressed when using an AIT-3 drive.