PCIe x4 vs x16 for single NVMe SSD speed increase?

PCIe x4 vs x16 for single NVMe SSD speed increase? can i put pcie x4 in x16 slot 7PCIe slots Up to300Wauxiliary power One PCIe x4 gen 3 Apple IO card Four PCIe x8 gen 4 Two single height Two double height Two PCIe x16 gen 4 Double cannonade! slot I have an Aorus Ultra Z390 board When I plug a GPU in the x4 slot, it runs at x1 Here's what I tried:

cannonade! slot 2 devices are x4 or less lanes PCIe devices Don't matter if the adapter PCB physically fits a x4x8x16 slot, the is and always will be x4

cancan saloon slot put it in the second slot first Damn waste of performance haha 13 PCI Express x16 vs x4 If it's a motherboard slot you're talking about it means it's a x16 physical slot but there are only x4 electrical connections, meaning that