ASROCK Rack X570D4U-2L2T - Expansion Slots (PCI Express Slots)

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2.6 Expansion Slots (PCI Express Slots)
ere are 3 PCI Express slots on this motherboard.
PCIE slot:
Matisse:
PCIE4 (PCIE 4.0 x8 slot, from CPU) is used for PCI Express x8 lane width cards.
PCIE5 (PCIE 4.0 x1 slot, from Premium) is used for PCI Express x1 lane width cards.
PCIE6 (PCIE 4.0 x16 slot, from CPU) is used for PCI Express x16 lane width cards.
Slot Generation Mechanical Electrical Source
PCIE6 4.0 x16 x16 CPU
PCIE5 4.0 x1 x1 Premium
PCIE4 4.0 x8 x8 CPU
PCIe Slot Congurations
Picasso:
PCIE4 is not supported.
PCIE5 (PCIE 3.0 x1 slot, from Premium) is used for PCI Express x1 lane width cards.
PCIE6 (PCIE 3.0 x16 slot, from CPU) is used for PCI Express x8 lane width cards.
Slot Generation Mechanical Electrical Source
PCIE6 3.0 x16 x8 CPU
PCIE5 3.0 x1 x1 Premium
PCIE4 N/A x8 N/A N/A
PCIE4 PCIE6
Single PCIE Card N/A x16
Two PCIE Cards x8 x8