PCIe x1 GPU cards?

PCIe x1 slot mod - Fit x16 card straight into x1 slot pcie 1x slot The conventional PCI slots are the 85 mm long 32-bit version, most PCI-X network cards use the 130mm long 64-bit slot As a result, the slots pcie 4 in pcie 3 slot The NVMe PCIe card allows you add PCI-e NVMe SSD to your motherboard without slot, perfect solution for PC upgraded Up to 3200+ MB

pcie x 16 slot So, there is no singular PCI Express slot There are actually four sizes : PCI Express x1, PCI Express x4, PCI Express x8, and PCI Express x16