[Compatible with] MacBooK Pro Retina A1708 Late2016- Mid2017. 512GB SSD PCIe 3.0×4 3D TLC NAND Flash Fast speed up to: Read 1750MB/S, Write 1400MB/S, Different computers have different test speeds [Important note] Must update the original SSD to macOS 10.13 High Sierra or later version before moving out.