M.2 NVMe SSD 500GB MSI Spatium M371, PCIe3.0 x4 / NVMe1.3, M2 Type 2280 form factor, Seq. Read: 2200 MB/s, Seq. Write: 1150 MB/s, Max Random 4k: Read /Write: 60,000/200,000 IOPS, Controller Phison E13T, 110TBW, TRIM, SMART, LDPC, E-t-E Data Prot, APST, Pyrite, 3D NAND TLC