Will M.2 PCIe 4.0 SSDs slow down on M.2 PCIe X1 Adapter? -- - M.2 PCIe X1 Speed Testing HD

1) Will not occupy a PCIe X16 GPU lane, can install on PCIe X1 lane, then you will get an extra M.2 PCIe slot for your motherboard2) The disadvantage is only...