1、High Efficiency: This M.2 to PCIe expansion card can effectively reduce interface interference and line loss, ensuring high efficiency. 2、4 Ports: This M.2 to PCIe graphics card expansion provides 4 ports to solve the problem of port shortage. 3、Anti Interference: This M.2 to PCIe expansion card has very strong anti interference ability to ensure high stability and integrity of signal transmission. 4、Wide Compatibility: This M.2 to PCIe expansion card works with for OS, for Windows and for Linux. 5、Reinforcement Treatment: The bottom of the card is reinforced to prevent product deformation. 1 x Expansion Card1 x Screw1 x Screwdriver Item Type: Pcie Expansion CardMaterial: PCBModel: PH410Product Interface: M.2 Mkey PCIENumber Of Interfaces: PCIE X1 Interface x 4System: for OS, for Windows, for Linux