Samsung 860 PRO 256GB Storage Capacity Solid State Drive – SATA III 6Gb/s Interface, 2.5 inch Form Factor, Up to 560MB/s Sequential Read Speed, Up to 530MB/s Sequential Write Speed, Random Read: Up to 100,000 IOPS, Random Write: Up to 90,000 IOPS, MTBF: Up to 1.5M Hours, Retail Box, 1 year warranty