What are the top uses of PCIe x1 Slots?

You need to configure the slot that the xpander card is installed in to “x4+x4+x4+x4” as opposed to x8 or x16 The motherboard BIOS mayalso

2 ports rather than ports As compared to M2, , by utilizing four PCI Express lanes and two SATA lanes, delivers a staggering

m24 slot wallet NVMe SSD in socket X , using all four PCIe lanes WiFiBT in socket Y I am not sure if

m2 expansion slot There is the manual, and it says which slots are shared with SATA or the last x4 slot There are three slots, so if you just guess