What are the top uses of PCIe x1 Slots?

What are the top uses of PCIe x1 Slots? pcie slot cover There are six PCIe slots available for optional PCIe cards The following figure shows the PCIe slot numbering pcie gpu slot PCI slot covers for Fractal Design Meshify C to have even more air flow

pcie gpu slot 20 Pieces PCI Slot Cover Hard Steel Dust Filter Blanking Plate, Vented Slot Covers for Computer Cases with Screws : : Computers & Accessories

pcie slot configuration gen1 gen2 gen3 cover a list of ways to get the most use out of extra PCIe slots The most common PCIe slot currently in use are PCIe x16 slots Install the PCI slot blanks Close the latch and tighten the captive screw Install Top Covers Tilt the cover into the chassis and insert the