SAMSUNG 840 EVO mSATA 500GB SATA III TLC Internal Solid State Drive (SSD) MZ-MTE500BW Max Sequential Read: Up to 540MB/s Max Sequential Write: Up to 520MB/s 4KB Random Read: Up to 98,000 IOPS Controller: Samsung MEX Controller 4KB Random Write: Up to 90,000 IOPS Power Consumption (Active): 0.145W Power Consumption (Idle): 0.055W Used For: Consumer