Lexar NM620 512GB M.2 PCIe 4.0 3D TLC NAND Solid State Drive - NVMe - Black Designed for intensive workloads, the Lexar NM620 M.2 2280 PCIe Gen3x4 NVMe SSD offers next-level performance that puts you in the computing fast lane with speeds up 3300MB/s read and 3000MB/s write. It’s supported by the PCIe Gen3x4 NVMe 1.4 technology standard and built with the latest 3D NAND flash. With speeds of up to 3300MB/s read, enjoy 6x the speed of SATA SSDs. The NM620 puts you in the computing fast lane