What are Small PCIe x1 Slots Used For?

x56 AMD B650 Motherboard Roundup pcie 2 0 x1 slot , PCI Express x1 and PCI Express x16 It is clear that the PCI Express x16 adapter will not physically fit in the PCI x1 slot PCI and PCI Express pcie m2 slot B650M-HDV · Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors · 8+2+1 Power Phase, · 2 x DDR5 DIMMs · 2 PCIe x16, 1 PCIe x1, 1

pcie slot height Advanced Thermal Design & Thermal Guard：To Ensure VRM Power Stability & 25110 SSD Performance; EZ-Latch：PCIe x16 Slot with Quick Release Design