Will SATA SSD Work In A Motherboard PCIE x4?

What is PCIe? Understanding PCIe Slots, Cards and Lanes pcie 4 m 2 in pcie 3 slot Es geht auch umgedreht bei PCIe, also auch PCIe SSD am PCIe BusPort ist kompatibel Die jeweils geringste PCIe-Spezifikation ist dann pcie 20 x16 slot Kinda odd he spent nearly 4 minutes talking about the difference between Gen 3 and Gen 4

pciex16 slot A single PCIe slot can now support x16, x8, x4, x2, or x1 lanes For example, PCIe x4 indicates a Gen 3 expansion slotcard with four lanes