"ThinkPad 256GB SAMSUNG PCIe NVME TLC OPAL M.2 SSD supporting PCIe 3.0 interface standard up to 4 lanes shows much faster performance than previous SATA SSDs. Its sequential performance is up to 300MB/s for read operations and 1700MB/s for write operations by 4 lanes. Proven 100% compatibility with ThinkPad machines. "