Question PCIE x8 card into a PCIE x4 slot

NVMe SSD to PCIe X16X8X4 Card pcie 3 0 x4 slot SuperSpeed Storage：PCIe x4 Connector; EZ-Latch：PCIe x16 Slot with Quick Release Design; Fast Networks：GbE LAN; Extended Connectivity：DP, HDMI; Smart pcie 30 x1 slot PCIe x1 slots are often used for less demanding expansion cards, such as sound cards, network cards, and Wi-Fi adapters PCIe x4: This slot has four lanes for

pcie 1 slot 2 slot, the PCIe x4 slot, or both are used, they get access to x4 lines Additionally, the x16 slot is reduced to x8 when used in this way PCIe