Expansion Slots (Pci Express Slots) - ASROCK B550D4U User Manual

2.6 Expansion Slots (PCI Express Slots)

There are 2 PCI Express slots on this motherboard.
PCIE slot:
Vermeer/Matisse:
PCIE4 (PCIE 4.0 x4 slot, from CPU) is used for PCI Express x4 lane width cards.
PCIE6 (PCIE 4.0 x16 slot, from CPU) is used for PCI Express x16 lane width cards.
Slot Generation
PCIE6
PCIE4
Cezanne/Renoir:
PCIE4 (PCIE 3.0 x4 slot, from CPU) is used for PCI Express x4 lane width cards.
PCIE6 (PCIE 3.0 x16 slot, from CPU) is used for PCI Express x16 lane width cards.
Slot Generation
PCIE6
PCIE4
Mechanical
4.0 x16
4.0 x4
Mechanical
3.0 x16
3.0 x4
B550D4U-2T / B550D4U
Electrical Source
x16
x4
Electrical Source
x16
x4
CPU
CPU
CPU
CPU
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