What are the top uses of PCIe x1 Slots?

Are UAD-2 cards supported on PCIe x4 or x16 slots? pcie x4 in x16 slot Yes It will work fine It won't run quite as fast as it will in a 16x slot, but the performance penalty isn't 75 percent , it's usually pcie 30 x1 slot I got a x570 Aorus Elite coming today and from what i can gather its gonna run at the full pci-e speeds on the primary slot while the

pcie x4 in x16 slot You can put anything smaller than the slot in just fine It's the PCI-e bracket screw that really holds things into place I'd get the newest