What's the bandwidth and form factor for PCIe x1 x4 x8 and x16?

4-Slot PCIe Expansion Chassis, PCIe - pcie 1x slot Ensure the GPU PCIe connector is fully inserted into the PCIe riser cable socket and motherboard PCIe slot when powered off PCI-E X 16 EXPANSION SLOT, 3 pcie 4 in pcie 3 slot ssd The PCIe x1 slot supports all types of wireless network cards, including the latest Wi-Fi 6 protocol However, a PCIe x1 slot can only support 1

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