Features: This NVME SSD Adapter Card is a upgraded SSD replacement for MacBook Air/Pro. Upgrade the Mac OS to the version of high sierra 10.13 or later. The upgrade will automatically update the smc and boot rom versions of the Mac to support the SSD of NVME. Allow M.2 PCI-E NVME SSD to Upgrade MacBook Air (2013-2017 Year) A1465 A1466 and Mac Pro (Late 2013-2016 Year) A1398 A1502. Support M.2 NVME/AHCI SSD such as Samsung 960/970 EVO, Intel 600p, WD Black, Crucial P1, HP EX920, ADATA SX8200 ,etc. Insert the adapter card fully into SSD slot and you must not use the Mac's own network recovery software to install a hard disk Mac OS, but to install through the U disk (you need to upgrade your computer to version 10.13.6 after finishing the installation disk with your switch system), in order to identify the hard disk. The golden finger design enhances the service life and good electrical performance of the adapter card. Note: 2017 MacBook Pro A1706 A1707 A1708 models are not supported. Specification: Item name: Adapter card Item size: 2.25 * 1.35 * 0.3cm /0.89 * 0.53 * 0.12in(L * W * H) Item weight: Approx.1g /0.04oz Package size: 15.4 * 11 * 1cm /6.06 * 4.33 * 0.39in(L * W * H) Package weight: 3g /0.11oz Package List: 1 * Adapter card