RIITOP NVMe to 12+16 Pin SSD Adapter allows you assembling larger Capacity NVMe SSD for your 2013-2017 Macbook Air and late 2013-Mid 2015 Mac PRO Compatible with MacBook Air 11" A1465 & MacBook Air 13” A1466 (Mid 2013-2017), MacBook Pro (Retina) 13" A1502 & 15" A1398 (Late 2013 - Mid 2015), Mac Pro ME253 MD878, NOT for Early 2013 MacBook Pro Required OS: mac OS 10.13 High Sierra or Later. Please use your original SSD to upgrades your macOS before installation Compatible with M.2 NVMe SSD such as Samsung 960 Evo, 960 Pro, 970 Evo, 970 Pro; Intel 600p, 660p, 760p etc., WD Black NVME SSD V1, V2, V3; Crucial P1; XG5,XG5P,XG6 Corsair MP500, MP510; Kingston A1000, A2000, KC1000; ADATA SX6000, SX7000, SX8200 and SX8200 Pro; HP ex920, ex950; MyDigital SBX-BPX. NOT Support: NOT support any SATA based (B+M Key) SSD Important Notice: It can't support recovering from internet, important to prepare bootable USB disk driver (M.2 PCIe has no OS systerm inside,it must be erased first), if you don't know how to do this, you can ask for help RIITOP NVMe to 12+16 Pin SSD adapter is compatible with the following MacBook Models (Note: requires macOS 10.13.6 High Sierra or later) How to use: 1. Make sure to install the High Sierra on your original drive, so that a newer firmware is installed that can drive NVMe. 2. For your old driver, please do a full backup via Time Machine. 3. Create a High Sierra Installer on a bootable USB stick. 4. Open the Macbook and disconnect the battery while switching out the drive and make sure both adapter and new SSD sit snug. 5. Reconnect the battery before closing the shell. 6. Insert the Installer USB stick from step 2, and press the option key while the machine starts. 7. Finally, once it's up you can now go to the disk utils to format and install the MAC OS. Notice: 1. mac OS failed on resume from hibernating with some NVME SSDs. Please turn off laptop all the time instead of close the lid and go. 2. Please insert our adapter fully into SSD slot, A bootable USB disk(see third point) must be prepared with High Sierra to format M.2 SSD first, it can't support recover from internet. 3. There are many customers can use it, so we suggest you to try it again if your MAC can't detect nVME SSD.