What is the purpose of the PCIe X1 slot

Fitting PCIE X4 card in PCIE X1 Slot ardForum x1 pcie slot 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 Laptop: Acer Ferrari 1200, but it may work on even older laptops that have a PCI-e slot Last edited: Mar 18, 2019

x1 pcie slot I read that the Dell XPS 8300 came with a PCIe slot and three PCIe slots for any other cards you