motherboard with 8 pcie x16 slots
MSI MPG B550 Gaming Plus - The AMD B550 Motherboard Overview: ...
The MSI MPG B550 Gaming Plus includes two full-length PCIe slots with the top slot capable of supporting up to PCIe 4.0 x16, and the second slot is locked at PCIe 3.0 x4.
2 RAM Slots Motherboard | Pangoly
The M.2 and x16 PCIe slots on a motherboard house the Ryzen 5 3600 must run PCIe 4.0. With this card, a reasonable amount of RAM clock speed overclocking should be possible.
PCIe x16 Slots - 2｜Motherboards｜ASUS Middle East
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