Micron SATA NAND 2.5-Inch C400 Solid State Drive 128GB MTFDDAC128MAM-1J1 9.5mm Capacity (unformatted): 128GB Industry-standard, 512-byte sector size support Micron 25nm MLC NAND Flash, SATA 6 Gb/s interface. Hot-plug capable Sequential 128k READ: up to 500 MB/s, Sequential 128k WRITE: up to 260 MB/s MTTF: 1.2 million device hours