Fangrui Product Details Ngff M.2 Nvme Ssd Convert Card Interface: M.2 Ngff Apply To: Ahci Protocol 2280 Pcie X4 M.2 Ngff1465 A1466 A1502 A1398 M.2: M Key Compatible With: 2013 2014 2015 Pro The Reasons For Not Recognizing The Disk Are Summarized As Follows: 1. The Card Adapter Is Not Inserted Into The Socket Of The Ssd Computer. 2, The Hard Drive Is Wrong, Some Use The Ngff M.2 Protocol Sata Hard Drive To Install, Pls Help To Check Your Hard Disk Protocol And Send A Photo To Us. 3, The System Installation Disk Should Use Version 10.13.6 Or Higherhoose Gpt (guid) Partition Format. 5, Pls Do Not Install The System From , Do Not Try To Use Your Original Backup To Restore The System, Because The Old And New Versions Of The System Disk Format Is Not The Same. Download The System, Make A 10.13.6 Disk System Installation, Install From Usb Disk. 1. Support Following M.2 (ngff) Pcie-ahci Ssd: Xp941/sm951(mzhpu128hcgm Mzhpu256hcgl Mzhpu512hcgl) Shpm2280p2 / 240g / 480g The Following Ngff Pcie Ssd Does Not Support: Smie Pcie-nvme