OCZ Technology 512GB Agility 4 Series SATA 6Gb/s 2.5-Inch Solid State Drive( SSD) With Up to 420 MB/s Read And 85K Max.IOPS- AGT4-25SAT3-512G Max. Read Up to 400MB/s; Max. Write Up to 400MB/s Max 4KB Random Read 48K; Max 4KB Random Write 85K MTBF 1.25 million hours