PCIe Bifurcation

What Are PCIe Slots Used For? - Devices and Expansion pci e slot ✓ Mini PCIe to 3 PCIe 1x adapter expands 3 PCI express 1x slot via your motherboard with mini PCIe can use 3pcs PCI express card (Sound Card , Network pcie4 slot In ASUS 「PCIe x16 Slots - 4」

pci slot 1 Card capacity and size Mac Pro has seven PCIe slots that accept many different types of PCIe cards: Slot 1: gen 4, up to x16