Riser Modules and PCIe Slots

Install PCIe cards in your Mac Pro pcie slot size 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 gen 4 in gen 3 slot The size represents the number of direct connections provided by either a PCIe slot or card These connections are typically called lanes and,

pcie slot sizes slots, but larger size adapters will not fit in smaller slots The following table shows PCIe slot compatibility Table 1 PCIe slot compatibility 1x slot, 4x