M.2 NVMe SSD 4.0TB Corsair MP600 Core XT, Interface: PCIe4.0 x4 / NVMe1.4, M2 Type 2280 form factor, Sequential Reads 5000 MB/s / Writes 4400 MB/s, Random Read / Write IOPS - 600K / 1000K, Phison PS5021-E21T, HMB 64MB, AES-256, TBW - 900 TB, 176L Micron 3D QLC NAND