Which slot should I use for my SSD?

I want to install Windows 10 on the fastest slot, but I am unsure which to use When selecting any drive installed on the PC Magician shows the interface

High speed ssd m2 disk for pc on white background Solid state high-speed An M2 PCIe SSD solid state drive storage slot on a motherboard

pci 4 in pci 3 slot It connects to your PC through the PCI Express slot instead of through the SATA cable, and it can be 50-650% faster than a standard SATA drive X Research

pcie x 16 slot I want to install Windows 10 on the fastest slot, but I am unsure which to use When selecting any drive installed on the PC Magician shows the interface