Samsung Launches 990 EVO Plus SSD With Higher Capacity, Power Efficiency and Performance Speeds Supported by PCIe 4.0 Written by The Post With capacities of up to 4TB, 73% better power efficiency and random read and write speeds of 1,050K IOPS and 1,400K IOPS respectively, the 990 EVO Plus offers the best-in-class SSD experience to consumers, workers and gamers alike