LeHang PCI E x4 x2 M.2 NGFF M Key NVME AHCI SSD Converter Card Adapter Raiser for NoteBook 2014 Mac OS Mini A1347 MEGEN2 MEGEM2 MEGEQ2

1. The interface of the adapter card is not inserted into the socket of the computer. It can be used with a little force. And very important thing is, Please after pressing it in. Because if it is not flattened, some contacts will not be touched, so the computer will definitely not recognize the hard disk. 2. The hard drive is wrong, some buyers use the SATA protocol M.2 NGFF hard drive to install, certainly not. 3. The system installation disk must use version 10.13.6 or higher, some buyers use 10.11 or 10.12 or even 10.10 to install, this is not acceptable, because these old version systems do not include NVME drivers. This is the same as the Microsoft system. If you use the NVME protocol hard disk and make a Windows 7 system, you will definitely not recognize the disk. (Of course, you can install the Windows 7 system by patching. The old mac system can be patched. Use, but it is very troublesome). 4. The hard disk partition format is wrong, it is not recognized when installing the system, you must have GPT (GUID) partition format.Do not install the system from the network, do not try to use your original backup to restore the system, because the old and new versions of the Apple system disk formats are not the same! Honestly download the Apple system, do a 10.13.6 Apple system installation disk, install from the USB disk, this is the only way! 5.The speed test on the picture of this product is the hard disk using Samsung PM961 on the actual measurement, the data is for reference only, not as a receipt basis, because the LATE 2014 version of the mac mini computer itself only supports PCIe x2 speed, resulting in a large discount on the hard disk speed. This is not a problem with the transfer card. You use the original hard drive cable of mac mini, which is the same result.