Does any PCIe slot support NVMe SSD's automatically or do I need

Does any PCIe slot support NVMe SSD's automatically or do I need pcie expansion slot PCIe x8 slot, not a PCIe x16 one Motherboards with high chipset heatsinks or other obstructions in front of the expansion slots may be pcie 1 slot An expansion slot is a port on a motherboard that accepts an expansion card Typical slot formats include PCIe and PCI

pcie 1 slot Some common types of expansion slots include peripheral component interconnect , PCI express , accelerated graphics port , and industry standard

pciex1_1 slot I don't seem to find any PCIe expansion solution that expands a single PCIe3x16 slot to multiple such slots, that also supports graphic cards  PCIe expansion slot definitions Slot, Type, Form factor, Connector link width, Negotiable link width 1, PCIe , FL, FH, x16, 16, 8, 4, 1