By further developing new tape materials, coating technology & a surface-smoothing technology, Sony LTO4 offers a breakthrough in performance with a massive 800GB native & 1.6TB compressed maximum recording capacity. For quicker backup & enhanced operating efficiency, LTO4 offers high-speed 120MB/s native & 240MB/s compressed data transfer. To accommodate the LTO4 tape's thickness & long length, the reel accuracy has been enhanced. Optimized hub roundness contributes to stable operation & a new flange shape protects the tape edges. As in previous models, the LTO4 cartridge incorporates a robust non-contact 8KB IC memory with twice the capacity of previous generations.