1 x gen3 x8 slot (x4 link): Z440 QuickSpecs v36.pdf. Mainboard ASUS TUF GAMING B650M-E WIFI (AMD B650, Socket AM5, ... . PRIME Z390-A - Chi tiết kĩ thuật｜Bo Mạch Chủ.
For internal PCIe expansion, this Z440 has 2 x PCIe Gen3 x
16 slots, 1 x PCIe Gen3 x8
slot (open-ended), 1 x PCIe Gen2 x4 slot (open-ended), 1 x PCIe Gen2 x1 slot (open-ended), and 1 x
PCI slot.
2 x
PCIe 5.0 x16 slots (supports x16 or x8/x8 or x8/x4/x4 modes)** Intel® Z890 Chipset** 1 x PCIe 4.0x4 slot * Please check the PCIe bifurcation table on ...