Crucial m4 256GB 2.5-Inch (9.5mm) Solid State Drive with Easy Desktop Install Kit CT256M4SSD2BAA Delivers powerful SSD performance gains for SATA 6Gb/s systems Features blazing-fast speeds  up to 500MB/s sequential reads Treats compressed and uncompressed files the same, resulting in consistently fast speeds . Fully utilizes Micron high-speed synchronous MLC NAND Built with advanced controller technology and Micron proprietary firmware Available in 64GB, 128GB, 256GB, and 512GB models Compatible with PC and Mac systems Includes Easy Desktop Install Kit Backed by a limited three-year warranty