Interface SATA 6.0Gb/s Form Factor 2.5-inch internal SSD Total Capacity 256GB* Warranty Limited 3-year or 100TBW*** NAND Toshiba BiCS3 3D TLC External DDR Cache 256MB Sequential Read MB/s 530 MB/s Sequential Write MB/s 500 MB/s Random Read IOPS 70k Random Write IOPS 40k Dimension (W x H x L) 69.85 x 7 x 100 mm Mean time between failure (MTBF) 1.8M hours Power Consumption (Active) Average: R : 1930mW; W : 2430mW Power Consumption (Idle) 170mW Temperature (Operating) 0°C to 70°C Temperature (Storage) -40°C to 85°C Note * 1GB = 1 billion bytes. Actual useable capacity may vary. ** 3 years or 100 TBW, whichever comes first. *** TBW (Terabyte Written): the total amount of data that can be written into an SSD before it is likely to fail. **** Speeds based on internal testing. Actual performance may vary.