Transcend 256GB MLC SATA III 6Gb/s 2.5" Solid State Drive 370 (TS256GSSD370S) Boost your computer's speed and capacity with a Transcend SSD Max. Read 570MB/s, Max. Write 470MB/s DDR3 DRAM cache TRIM Command support Power Shield to prevent data loss when sudden power off Supports S.M.A.R.T. function Built-in ECC protection for long data retention Intelligent Block Management and Wear Leveling