Plextor M6M Series 256GB mSATA Internal Solid State Drive (PX-256M6M) Best choice for mobile and everyday use with incredible performance, great versatility, and increased battery life that lets you do more, for longer. Greatly increase your efficiency when working with audio, video, and multimedia content Sequential Read Speed: 520 MB/s - Sequential Write Speed: 440 MB/S - Random Read Speed: 94,000 IOPS - Random Write Speed: 80,000 IOPS