M.2 NVMe SSD 1.0TB MSI Spatium M480 PRO, PCIe4.0 x4 / NVMe1.4, M2 Type 2280 form factor, Seq. Read: 7400 MB/s, Seq. Write: 6000 MB/s, Max Random 4k: Read /Write: 750,000/1000,000 IOPS, Controller Phison E18, DRAM Cache 1GB, LDPC ECC Algorithm, APST, AES256/Pyrite, 3D NAND TLC