NVMe x4 adapter card for PCIe x1 slot

What is the difference between a PCIe x1, x4, and x16 slot pcie 1x slot On PCIe X1, X4 and X16 slots, the first 18 pins are all wired the same, so as long as the PCI-Express card fits in the PCI-Express slot, it pcie x1 in x16 slot A PCIe x1 slot has one lane and can move data at one bit per cycle A PCIe x2 slot has two lanes and can move data at two bits per cycle (and so

pcie slot pinout I cut open the back of a x1 slot on my motherboard to allow me to fit a full size GPU