3D NAND SATA SSD for capacities up to 4TB with enhanced reliability. As used for storage capacity, one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. Sequential read speeds up to 560MB/s and sequential write speeds up to 530MB/s. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second and gigabit per second (Gb/s) = one billion bits per second An industry leading 1. 75M hours mean time to failure (MTTF) (1) and up to 600 terabytes written (TBW) (2) for enhanced reliability. (1) MTTF = Mean Time To Failure based on internal testing using Telcordia stress part testing. (2) TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity WD F. I. T. Lab certification for compatibility with a wide range of computers.