PCIe SSD 240S PCIe SSDs

PCIe SSD 240S PCIe SSDs m 2 slot with pcie x4 lanes 2 slots with x4 PCIE lanes each m2 expansion slot 2 drives as any other PCI-e lane They will split it based on what slots are populated I know for something like Ryzen it has a dedicated x4

m2 expansion slot ; 22mm x 30mm, x2 or x4 lanes PCIe running the NVMe command set May be BGA mounted on MobileTablet LaptopPC boot Server boot ; 22mm x 80mm x4 lanes

m2 slot It will not affect the videocard And as been said, the NVME slot will go to PCIe instead #2  The top slot that has the heat-sink on it does use PCIe lanes If you use it your x16 PCIe slot will only use x8 speeds