Explaining PCIe Slots

PCI Express slots on the motherboard can be wider then the number of lanes connected For example a motherboard can have x8 slot with only x1

CPU PCIe is built to support gaming from the ground up with up to 16 CPU PCIe lanes and up to four CPU PCIe lanes is

pcie slot cover Computer Graphics Cards for PCI Express x16 · Nvidia Tesla M10 32GB GDDR5 GPU PCIe Accelerator Graphics Card

pcie m2 slot CPU PCIe is built to support gaming from the ground up with up to 16 CPU PCIe lanes and up to four CPU PCIe lanes is