Can You Use a PCIe Express Card In a Slot?

pcie 4 0 in 3 0 slot   Dan pciex16 slot configuration

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3 Best 2TB+; 4 Best for Steam Deck; 5 Best for PS5; 6 Best PCIe 5; 7 How to spot the best deals PCIe Gen 4 is backward compatible, so a PCIe Gen 4 device connected to a PCIe Gen 3 system will function normally at PCIe Gen 3 speeds That means if you

slot 768 What is the point of even buying a video card that uses PCIe if people have motherboards that only have PCIe slots? It is also my understanding that Slot 4 is actually a SATA interface, however this means the remaining 3 slots, Slot 3, 5 & 6 should be PCIe 4x4