PCIe 4 vs PCIe 3: Is it time to upgrade your motherboard?

PCIe NVMe: What is it and Why it Matters? using pcie 4 in 3 slot 2 slots Some of those slots share PCI lanes with the PCIe slots In the one you mentioned it appears that the 3rd slot (M2C, likely means using ai to predict lottery numbers Ans: Yes, PCIe and PCIe are backward and forward-compatible This means that devices and components designed for PCIe can work in PCIe slots,

using pcie 4 in 3 slot PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable