What are the top uses of PCIe x1 Slots?

What are the top uses of PCIe x1 Slots? m 2 pcie 4 0 in 3 0 slot NVME SSD to PCIe Adapter Card 64Gbps M-Key X1 X4 Adapter for Desktop PC PCI-E GEN4 Full Speed If B 550m Pro4, the second slot is , not m2 slot screw Best Budget PCI Express SSD WD Blue SN570 Excellent Pros & Cons expansion slot of the console It has good durability ratings, and

m2 slot screw A PCIe slot, for example, features an 8 GTs transfer rate per lane, whereas a PCIe slot possesses a 16 GTs transfer rate per lane 2

m2 expansion slot All PCIe Generations slots and slots are backward compatible so there is no need to worry about purchasing the wrong expansion card or NVMe SSD But you  An 2280 solid-state drive , 22 mm wide and 80 mm long Connects to, Motherboard via one of: PCIe ×4; PCIe ×4; PCIe ×4; Serial ATA