Are UAD-2 cards supported on PCIe x4 or x16 slots?

I explain in this video what is PCIe x4 on the motherboard and its uses I also explain what PCIe

Hi Can someone help me understand what PCIe x4 Slot means?

4x8 slot car layouts The X570 TUF does not come with an X4 slot and I'm not sure if I'll be using the second PCIE X16 slot for something else 4x card directly at

4x4 slot pg Hi Can someone help me understand what PCIe x4 Slot means?