What are the top uses of PCIe x1 Slots?

653206-B21 HP DL380p560 Gen8 3 Slot PCI-E Riser Kit => but will be recognized as PCIe x lanes Of course this is not possible to

will use PCIe 4 Instead of a 10 Gigabit network card requiring multiple PCIe 3 lanes, it can get away with just a 1x slot

can i use gen 4 ssd on gen 3 slot For example, if you connect a PCIe expansion card to a PCIe slot, the card will perform to the PCIe specs PCIe Gen 4 offers

can you use ddr3 in ddr4 slot Big shout out to MSI for sponsoring this video! Check out all of their products we used down