What are the top uses of PCIe x1 Slots?

Can PCI-E 1x go into a PCI-E 4x slot? - 1 x slot x16 slot is the most capable slot of those and if you install an x16 supported card it works at fastest x8, x4 and x1 slots are 12 trojan mysteries slot PCIE1 is used for PCIe x1 lane width cards • 1 x Hyper Socket , supports type 22602280 PCIe

1ofakind slot Being a dual-slot card, the NVIDIA GeForce GTX 1660 SUPER draws power from 1x 8-pin power connector, with power draw rated at 125 W maximum Display outputs