M.2 NVMe SSD 512GB Lexar NM620, Interface: PCIe3.0 x4 / NVMe1.4, M2 Type 2280 form factor, Sequential Reads/Writes 3500 MB/s/ 2400 MB/s, Random Read/Write 200K IOPS/ 256K IOPS, Innogrit IG5216, LDPC, HMB SLC cache 64MB, TBW: 250 TB, MTBF: 1.5mln hours, Mi