SAMSUNG 850 EVO 2.5" 2TB SATA III 3D NAND Internal Solid State Drive (SSD) MZ-75E2T0B/AM Max Sequential Read: Up to 540 MBps Max Sequential Write: Up to 520 MBps 4KB Random Read: Up to 98,000 IOPS Controller: MHX 4KB Random Write: Up to 90,000 IOPS Used For: Consumer MTBF: 2,000,000 hours Operating Temperature: 0°C ~ 70°C