Specification Brand : Sintech BulletPoint1 : Notice: Pls read below description if it can't work for you. There is hibernation for all 2013-2014 Macs,you can set it to resolve this problem as guider in attached photo.If you meet unbootable after installing MAC OS,pls reset "NVRAM" by Hold Down "CMD+Option+P+R". BulletPoint2 : Support Adata NVMe SSD : SX6000, SX7000, SX8200, SX8200 Pro etc,Corsair : MP500, MP510,Crucial : P1,HP: ex920, ex950 BulletPoint3 : Support Intel NVMe SSD : 600p, 660p, 760p,Toshiba XG3-XG4-XG5-XG5p-XG6 line,Samsung: 960 Evo, 960 Pro, 970 Evo, 970 Pro,WD:v1, v2 and v3,MyDigital: SBX - BPX BulletPoint4 : NOT Support: PM981,950 Pro ,WD Blue NvME SN570 /SN770 BulletPoint5 : 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. Color : Black Color1 : black Color2 : silver CompatibleDevices : Laptop ConnectivityTechnology : nVME ConnectorType : CF-Express Type-B, M.2 NVMe 2230 ConnectorType1 : Micro USB ConnectorType2 : USB Type C CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 06974755830004 ExternallyAssignedProductIdentifier1 : 741960241293 ExternallyAssignedProductIdentifier2 : 0741960241293 FinishType : Gold HardwareInterface : pci HardwareInterface1 : memory_stick HardwareInterface2 : microsd ItemName : Sintech 2Pc/Pack NGFF M.2 nVME SSD Adapter Card for Upgrade MacBook Air(2013-2016 Year) and MacBook PRO(Late 2013-2015 Year) ItemPackageDimensions_Height : 11.8 centimeters ItemPackageDimensions_Length : 0.2 centimeters ItemPackageDimensions_Width : 6.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : memory-card-adapters Manufacturer : SIntech Electronic ModelName : 8541644066 ModelNumber : ST-NGFF2013-2 NumberOfItems : 1 NumberOfPorts : 1 OperatingSystem : Windows, macOS, Linux OperatingSystem1 : Linux,Mac OS 9.X, Windows 2000, Windows 10, Windows 98 OperatingSystem2 : Windows 7,8,10,All Windows Server Versions 2000 OperatingSystem3 : Mac OS PartNumber : ST-NGFF2013 PowerPlugType : no_plug ProductDescription : NOTICE:because too many customers can use it,I suggest you to try it again if your MAC can't detect nVME SSD. Pls notice to insert card fully into SSD slot and you must prepare bootable USB disk(see third point) with High Sierra to format M.2 SSD first, it can't support recover from internet. main steps are as following: 1. Make sure to move to High Sierra while still on your old drive, so that a newer firmware is installed that can handle NVME. 2. Do a full backup to your TimeMachine. 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. Finally reconnect the battery before closing the shell. 5. Insert the Installer USB stick from step 2, and press the option key while the machine starts. Once it's up you can now go to the disk utils to format ProductSiteLaunchDate : 2020-12-04T05:58:20.027Z ReadSpeed : 10 megabytes_per_second Size : 4x M.2 (M Key) SpecificUsesForProduct : Laptop Style : PCIE x4x8x16 Card SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 43200000 WarrantyDescription : 3 MONTHS WriteSpeed : 9 megabytes_per_second