Samsung 990 EVO Plus 4TB PCIe 5.0/4.0 NVMe M.2 2280 SSD – Form Factor: M.2 (2280) – Interface: PCIe Gen 4.0 x4 / 5.0 x2 NVMe 2.0 – Samsung V-NAND TLC – Controller: Samsung in-house Controller – SQL Read Speeds: Up to 7,250 MB/s – SQL Write Speeds: Up to 6,300 MB/s – Random Read (4KB, QD32): Up to 1,050,000 IOPS – Random Write (4KB, QB32): Up to 1,400,000 IOPS – MTBF: 1.5 Million Hours – TBW: 2400 – MZ-V9S4T0BW