What are the top uses of PCIe x1 Slots?

1 x slot   Dan 123 slot

PCI Express: Unidirectional Bandwidth in x1 and x16 Configurations ; Generation, Year of Release, Data Transfer Rate ; PCIe , 2003, GTs

The PCI Express x1 to x16 adapter accommodates low profile x2, x4, x8, x12 or x16 PCI Express cards, eliminating the cost and hassle of upgrading a PCIe card or The 'x16′ indicates the maximum number of PCI Express lanes supported and thus, the length of the slot As version , each lane provides

slot calendar PCI Express: Unidirectional Bandwidth in x1 and x16 Configurations ; Generation, Year of Release, Data Transfer Rate ; PCIe , 2003, GTs The PCIe x1 slot is the smallest PCI Express slot and has the lowest throughput compared to larger PCIe slots such as the PCIe x16 slot However