SAMSUNG 990 PRO 4 TB NVME SSD W/HEATSINK – READ SPEED UP TO 7450 MB/S, WRITE SPEED TO UP 6900 MB/S, RANDOM READ UP TO 1400000 IOPS, RANDOM WRITE UP TO 1550000 IOPS, PCIE 4.0 X4, NVME 2.0, V-NAND 3BIT MLC; IN-HOUSE CONTROLLER, 2GB LOW POWER DDR4, 2400TBW 5 YEARS CARRY-IN WARRANTY OR 2400TBW FEATURES: GEN4 WITH 55%+ IMPROVEMENT IN RANDOM PERFORMANCE COMPARED TO 980 PRO. READ & WRITE SPEEDS UP TO 7450/6900 MB/S². REACH NEAR MAX PERFORMANCE OF PCIE 4.0³ POWERING THROUGH FOR ANY USE.