1 additional PCI-Express x1 slot is needed

PCIe vs NVMe: Are They the Same? pcie 3 0 x1 slot You could look at something like the C9Z390-series which have four x16 physical slots and one x1 slot pciex1_1 slot PCIe x1: These are the smallest PCIe slots, used for almost any other cards like average network adapters and USB expansion cards · PCIe x4:

pcie 20 x16 slot You could install Linux, and run any AMD or Nvidia GPU with an equivalent performance of a GTX 1650-1660 into an x1 slot If you run a GPU with