PCIe 4 vs PCIe 3: Do you need Gen 4 in 2020?

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Compatible PCI Express motherboards paired with a PCI gen 4 SSD can produce sequential read and write PCIe speeds twice as fast as last-gen PCIe series

Gen 4 is faster than Gen 3 Does anyone know if you can buy a PCIe x16 low profile card that supports FOUR M2 NVMe drives A pcie 3 x16 slot modded to 4x ports

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