Using a PCIe x1 card in a PCIe x16 slot

Install a low profile video card into a system with only a x1 PCIe slot • Install x4 or larger PCIe cards into a system with only x1 PCIe slots available

SATA card for PCIe x1 slot with 8 ports Bizarro

pcie x4 in x16 slot You can install PCI Express slots in larger slots but not smaller ones For example, you can install a PCI Express x1 adapter into an x16 slot (but will still

pcie 4 ssd in pcie 3 slot 2 Answers 2 Any PCI Express card of a smaller size will fit into a larger slot So an x1 card will fit in an x8 slot Please see the Wikipedia