Features: 1.M.2 NVME to PCIE: This riser card extends 4 PCIE X1 ports through M.2 B+M?KEY PCIE port, suitable for Ethereum Mining or GPU miner. 2.M.2 to 4 PCIE Ports: 4 ports on the riser card outputs all PCIE X1 signal, and it can not be connected to USB devices. 3.Simple Design: This M.2 NVME to PCIE riser card can be connected to motherboard directly without any extension cable, and it can be fixed on chassis, which ensures stability of data. 4.Heat Dissipation: This M.2 to 4 PCIE ports riser card adopts aluminium heat sink to cover ASM1184E chip for prevent the chip from overheating. 5.Wide Compatibility: This M.2 NVME to PCIE 1X riser card is suitable for DOS, for LINUX, for Win 7, for Win 8, for Win 10, for Win 11, etc. specification:Item Type: M.2 NVME to PCIE 1X Riser Card Material: Metal, Plastic Main Control Chip: ASM1184E Output Interface: USB3.0 Interface (Actually PCIE 1X Signal) Product Color: Black Printed Circuit Board Support System: For LINUX, for Win 7, for Win 8, for Win 10, for Win 11, etc. PackageList:1 x M.2NVMEtoPCIE1XRiserCard 1 x Small Screw NoteA: Check whether the mainboard has the key?M M.2 slot. The M.2 SATA cannot be used. B: USB3.0 cannot be inserted into USB devices, but can only be connected to the extension cable of the matching USB graphics card.