Will PCIe x1 Sound card work in PCIe x16 slot?

Next Generation Storage：1*PCIe x4 and 2*PCIe x4 Connectors EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design

You can insert a PCIe x1 card into a PCIe x16 slot, but that card will receive less bandwidth Similarly, you can insert a PCIe x8 card into a

can i put ddr3 in ddr4 slot 1 PCIe x16 slot; 4 SATA3, 2 x ; Graphics Output Options: HDMI & Display ; 1 Rear USB Gen2x2 Type-C, 1 Rear USB Gen2 Type-A

can you run pcie 40 in 30 slot PCIe slots allow your motherboard to connect with your PC's most critical components and provide key functionality