2x PCIe x16 slots; PCI_E1 (From CPU); Support up to PCIe 4.0; PCI_E2 (From B660 chipset); Support up to PCIe 3.0 x4; 1x PCIe 3.0 x1 slot (From B660 chipset)
2x PCIe x16 slots; PCI_E1 (From CPU); Support up to PCIe 4.0; PCI_E2 (From B660 chipset); Support up to PCIe 3.0 x4; 1x PCIe 3.0 x1 slot (From B660 chipset)
