Modern motherboards with 6+ usable PCIe slots?

drives affecting PCIe performance? m 2 slot with pcie x4 lanes PCIe x4: These have four PCIe lanes, and they also can fit into a x16 slot Often used for single NVMe SSD expansion cards, they are also m2 slot If you connect a NVME SSD to a PCIe x4 slot it will have a higher maximum bandwith than if you connect it to a 1x or 2x slot So logically it

m2 slot screw 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