The Plextor 512GB M3S SATA 6Gb/s SSD provides read/write speeds up to 510/360 MB/s in sequential mode and up to 70,000/65,000 IOPS in random mode. The M3S is powered by True Speed which gives it the ability to deliver sustained high performance even after extended periods of continuous operation and years of intensive use. Performance specs of most SSDs are usually based on FOB (Fresh Out of the Box) products, which can result in overstated performance results. Plextor exceeds industry expectations by doing Enterprise Benchmark testing of consumer drives in a Dirty/Steady State to demonstrate sustained Read/Write performance. Each SSD drive is put through the rigors of a 20-hour high temperature burn-in test and strenuous simulations of real-world working environments. This type of testing gives a more realistic perspective of everyday performance. As a result Plextor SSDs have a 0.5% average annual failure rate, which is one of the lowest in the industry. True Speed maintains an extraordinarily high transfer speed rate while maintaining original performance levels in the long term without the severe write speed degradation common with other SSDs. True Speed optimizes data transfer speeds with exclusive firmware featuring Instant Restore, Global Wear Leveling, and Bad Block Management. The M3S is powered by the server grade Marvell 88SS9174 controller chip supporting a SATA III 6Gb/s interface and the highest-quality Japanese NAND flash by flash memory innovator Toshiba. Plextor"s True Speed coupled with advanced firmware and best in class hardware ensures full potential performance even when data is heavily fragmented as a result of prolonged usage. The M3S is the ideal drive for power users, serious gamers, system integrators, and other users who demand fault tolerant performance. (SSD Technology is used by the military and aerospace industries because of its stability and durability.)