Biwin MLC Flash 256GB 2.5 Inch 2.5" 7mm SATA III 6Gb/s Internal Solid State Drive SSD Optimized performance for everyday computing needs;Backed by a three-year limited warranty Sequential read speed 511 MB/s; Sequential write speed 172 MB/s Worry-free data security with BCH ECC 66 bits/1KB Interface: SATA 6Gb/s (Compatible with SATA 3Gb/s and SATA 1.5Gb/s) Capacity: 256GB;Form Factor: 2.5 inch;Flash: MLC;Thickness: 7.0 mm