SAMSUNG 850 EVO 2.5 120GB SATA III 3-D Vertical Internal Solid State Drive (SSD) MZ-75E120B/AM Max Sequential Read: Up to 540 MBps Max Sequential Write: Up to 520 MBps 4KB Random Read: Random Read (4KB, QD32): Up to 94,000 IOPS Random Read Random Read (4KB, QD1): Up to 10,000 IOPS Random Read Controller: Samsung MGX Controller 4KB Random Write: Random Write (4KB, QD32): Up to 88,000 IOPS Random Write Random Write (4KB, QD1): Up to 40,000 IOPS Random Write MTBF: 2,000,000 hours Operating Temperature: 0°C ~ +70°C Operating Humidity: 5% to 95% RH