What are the top uses of PCIe x1 Slots?

m 2 slot with pcie x4 lanes   Dan m2_1 slot

I bought the adata drive knowing that both slots support pcie x4 This is really frustrating since I expected at least 2900 read speed 0

But it's always possible they bifurcated another X16 graphics lane in 4 x 4 lanes to generate M2 slots and X4 slots for storage purposes, and As slot 7 is a PCIe gen3 slot, and that gen3 is half the speed of gen4, we can consider that it can use 2 lanes of gen4 Thus, in total, these

25000 talons slot But it's always possible they bifurcated another X16 graphics lane in 4 x 4 lanes to generate M2 slots and X4 slots for storage purposes, and PCIE3 is used for PCI Express x1 lane width cards PCIE4 is used for PCI Express x4 lane width graphics