SAMSUNG 840 Pro Series 2.5 512GB SATA III MLC Internal Solid State Drive (SSD) MZ-7PD512BW 4KB Random Read: Up to 100,000 IOPS Controller: Samsung MDX Controller Sustained Sequential Read: 540MBps Sustained Sequential Write: 520MBps 4KB Random Write: Up to 90,000 IOPS Power Consumption (Active): 0.069W Power Consumption (Idle): 0.054W Used For: Consumer