What is the difference between a PCIe x1, x4, and x16 slot

This PCIe x1 to PCIe x1 Slot Extension adapter provides enhanced compatibility between motherboards and a variety of PCI Express expansion cards, allowing you

I installed the adapter in the last full size PCIE slot and it works fine When installed in the x1 slot it does

x16 slot the PCIe version and how they can impact the PCIe slot There are essentially four types of

x1 pcie slot 2 PCIe adapter ONLY supports PCI-e NVMe based M Key and B+M Key SSD , NOT supports any SATA based SSD Fit for PCIe x4 x8 x16 slot ] * The vented