Can I install a pcie x1 card in full size pcie slot?

Can I install a pcie x1 card in full size pcie slot? pcie x1 in x16 slot This PCIe x1 to PCIe x16 Slot Extension adapter provides enhanced compatibility between motherboards and a variety of PCI Express expansion cards, allowing you pcie 30 x1 slot PCI Express Expansion ; Downstream slot port PCIe x16 PCI-E SMT Type Slot Supports PCI Express Gen 4 Bandwidth ; Power connector One SATA 15pin power

pcie 30 x1 slot PCI Express X1 to X16 Low Profile Slot Extension Adapter - PCIe x1 to x16 Adapter - PCIe x1 to PCIe x16 slot adapter

pcie 50 slot IF your mobo is out of warranty just cut the back part off the Pci-E X1 slot and the card will fit without seriously messing up the mobo or The PCI-E expansion riser card adapter is designed to convert 1 PCI-E 1X slot into 4 PCI-E 16X slots Support PCIE X1 or X4,X8,X16 · High-performance main