Feature:1. Dual M.2 SSD: Made of high quality materials, the adapter card supports two M.2 SSDs at the same time (one SATA interface and one NVMe interface).2. M.2 NVMe SSD to PCIE 4.0: The adapter card converts an M.2 NVMe SSD (M key) interface to PCIE 4.0 x4 interface (PCIE 3.0 2.0 1.0 compatible).3. M.2 SATA SSD to SATA 6Gbps: This adapter card converts an M.2 SATA SSD (B key or B+M key) interface to a SATA 6Gbps interface (a SATA cable connection is required).4. Easy Installation: Including regular size and thin slot brackets, used for flexible system chassis installation, no need to install drivers, easy to install.5. Support: Support M.2 SSD size is 2230 2242 2602 2802 2110mm, supported hard disk has M KEY M.2 PCIE interface.Specification:Item Type: Adapter CardMaterial: PCBNVMe Adapter Card Specifications for Macbook:Interface: M Key Nvme Protocol M.2 to for Macbook InterfaceSupported Hard Disk: M Key M.2 PCIE InterfaceSupport for Macbook Air, for Macbook Pro 2013 to 2017 (Please Check Before Ordering).Package List:1 xAdapter Card3 x Screws2 x Studs1 x Screwdriver1 x Baffle1 x SATA Line