Description: M.2 NVMe SSD Transfer to Apple Notebook Adapter Card input interface:M-Key M.2 NVME (SATA M.2 protocol is supported) The following machine models can be installed: 2013 - MacBook Pro retina A1398 A1502 (ME864 ME865 ME866 ME293 ME294), 2014 - MacBook Pro retina A1502 A1398 (MGX72 MGX82 MGX92 MGXA2 MGXC2), 2015 - MacBook Pro retina A1502 A1398 (MF839 MF840 MF841 MJLQ2 MJLT2 MJLU2), 2013-2014 - MacBook Air A1465 A1466 (MD711 MD712 MD760 MD761), 2015 - MacBook Air A1465 A1466 (MJVM2 MJVP2 MJVE2 MJVG2 MMGF2 MMGG2), 2017 - MacBook Air A1466 (MQD32 MQD42 MQD52, Model A1466 EMC3178) 2017 - Pro ME253 MD878, iMAC A1419 (Late 2013 And future machines). Specifications: Answers to FAQ questions: This adapter card has been tested before delivery, and you can't recognize the disk when you install it. Please don't doubt that the adapter card is broken It is wrong to doubt life like this. The reasons for not recognizing the disk can be summarized as follows: 1. The adapter card is not inserted into the solid-state hard disk socket of the computer, so you can use a little force. If our customer service encounters N and says that you can't recognize the disk, take a picture and look at it, but it's not inserted to the end, so you can't recognize it. 2. The hard disk is used incorrectly. Some buyers use the SATA protocol M.2 NGFF hard disk to install it, but it will definitely not work. 3. The system installation disk must use version 10.13.6 or higher, and some buyers use version 10.11, 10.12 or even 10.10 to install it, which is not acceptable because these old systems do not contain NVME drivers. This is the same as the Microsoft system. If your computer uses the NVME protocol hard disk and builds a windows 7 system, you will definitely not recognize the disk (of course, you can install the windows 7 system by patching J, and patch the old system-it can be used, but it is very troublesome) 4. The partition format of the hard disk is incorrect, which cannot be recognized when installing the system. GPT(GUID) partition format is required.