Plextor M5P Series 2.5 256GB SATA III Internal Solid State Drive (SSD) PX-256M5P Max Sequential Read: Up to 540 MB/s Max Sequential Write: Up to 450 MB/s 4KB Random Read: Up to 94,000 IOPS Controller: Marvell 4KB Random Write: Up to 86,000 IOPS Max Shock Resistance: 1500G Max Vibration Resistance: 7 ~ 800Hz, 2.17Grms (Operation) Used For: Consumer