DeckLink Quad 2 w Gen 4 PCIe x4 slot?

The drives both use only PCIe x2 connectivity Is there a way to attach two of these drives to a single PCIe x4 slot on the motherboard? Maybe

PCIe x4: This slot has four lanes for data transfer It provides more bandwidth than an x1 slot and is commonly used for various expansion cards, including

x4 slot The adapter card I am looking at can be used in a X4, X8 or X16 PCIe slot and they say I will get up to 32Gbps when it is plugged into a PCIe

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