With a PCIe 3.0 x4 interface, the 512GB M.2 Internal SSD from Lenovo is designed for high-speed data transfers, making it easy to transfer large files to and from the drive quickly and efficiently. This internal drive features sequential read speeds up to 300 MB/s and sequential write speeds up to 1700 MB/s and has been tested for compatibility with ThinkPad machines. Features * 512GB Storage Capacity * M.2 Form Factor * PCIe 3.0 x4 Interface * Max Sequential Read Speed: 300 MB/s * The warranty is covered by the manufacturer for 1 Year. Package Contents * Lenovo ThinkPad 512GB PCIe NVME TLC OPAL M.2 SSD