Will PCIe x1 x4 cards work in x16 slot?

So, to answer your original question, if you're happy to abandon any other PCI devices you currently have, you can choose a motherboard with more PCIe x1 slots;

However, whether you need a PCIe x16 slot depends on usage, such as gaming and graphics-intensive tasks If the motherboard and connected device support the

pcie slot cover PCIe slots are used to connect graphics cards, sound cards, other interface cards and some

pcie 4 card in pcie 3 slot Lengths can also vary, coming in 16 If you have the option of multiple slots where at least one supports PCIe, it's worth considering your secondary slot