Silicon Power S55 480GB 2.5" 7mm SATA III Internal Solid State Drive SP480GBSS3S55S25 Read up to 540 MB/s, Write up to 480 MB/s by CDM 7mm slim design suitable for Ultrabooks and Ultra-slim notebooks SATA III 6Gbps backwards compatible with SATA II 3Gbps Low power consumption Shockproof & Anti-Vibration