Plextor SATA 6.0 Gb-s 2.5-Inch Solid State Drive PX-128M2S-02 Supports SATA 6Gb/s interface - reads and transfers large amount of data quickly in the shortest time possible up to 420 MB/s sequential read and 210 MB/s sequential write Uses "Marvell 88SS9174" controller chip (currently industry's most advanced control chip) which helps boost read and write performance chip