Samsung 990 PRO 4TB NVMe PCIe Gen 4.0 M.2 SSD – Up to 7,450 MB/s Read, 6,900 MB/s Write, Smart Thermal Control, Enhanced Power EfficiencyCapacity: 4TB Interface: PCIe Gen 4. 0 x4, NVMe 2. 0 Form Factor: M. 2 2280 Sequential Read Speed: Up to 7,450 MB s Sequential Write Speed: Up to 6,900 MB s Random Read Speed (QD32): Up to 1,600,000 IOPS Random Write Speed (QD32): Up to 1,550,000 IOPS NAND Flash: Samsung V NAND 3 bit MLC (TLC) Controller: Samsung in house controller Cache: 4GB LPDDR4 DRAM Endurance: 2,400 TBW Warranty: 5 Year Limited Warranty Features: Enhanced power efficiency with