What are the top uses of PCIe x1 Slots?

PCIe adapters and slots come in 4 different sizes: 1x, 4x, 8x, and 16x Smaller size adapters do fit in larger slots, but larger size adapters do not fit in

The most common slots I've seen on consumer motherboards are 1x and 16x If you count laptops, mpcie is the slot that every wifi card and a lot

pcie x16 expansion slot NVIDIA H100 PCIe Card Dimensions full-length dual-slot PCIe card For details refer to the NVIDIA Form Factor

pcie 4 nvme in pcie 3 slot PCIe Base spec and various other PCIe specs show less , ECN, April 28 Unoccupied Slot Power Hand-off State Clarification This ECN allows the