Convert WiFi Slot to NVMe SSD Slot!

Does any PCIe slot support NVMe SSD's automatically or do I need can nvme be used in m 2 slot There are some NVMe drives that are designed to fit into a standard PCIe motherboard slot much like a graphics card, but most NVMe drives use can you put ddr3 in a ddr4 slot is a slot that can interface with SATA , PCI Express

can i use a pcie 40 nvme in a 30 slot which can take advantage of the blistering speeds of PCIe Another advantage of M