Top uses of the PCIe 1x slot on your motherboard

Need to know what PCIe Gen are the two SSD slots for Acer Nitro 5 pcie 1x slot I cut open the back of a x1 slot on my motherboard to allow me to fit a full size GPU pcie training error slot 1 slot exclusively uses those 16 lanes and doesn't share them Each slot takes up exactly the number of lanes listed, so x2 and x1 slots are

pcie gen 4 in gen 3 slot EXPANSION CHASSIS FOR PCIE CARDS: Increase the PCI-e slot count of a desktop computer or server; Add four external PCIe x1 slots;