The adapter can covert the NGFF M-key SSD to the 2014 Macbook Mini A1347 MEGEN2 MEGEM2 MEGEQ2 SSD. Note: The Nvme SSD only work for Mac OS HiSierra. Note: The adapter only work for M-key SSD, cannot work for B-key or B/M-key socket. This riser card supports 2280 2260 2242 2230 PCIE x4 and PCIE x2 protocol M.2 NGFF SSD solid state drive converted to Late 2014 version of Mac mini A1347 (MGEM2xx/A MGEN2xx/A MGEQ2xx/A) model computer hard drive.