Which slot should I use for my SSD?

B550-A Pro M2_1 Slot not working? m2 pcie slot 2 SSD slot, and support for a PCIe NVMe slot is listed as an optional feature for AMD's B650 chipset motherboards Most B650E, X670 and m24 slot pcie is about 4x faster The add in cards plugged into a X4-X16 pcie slot will have some sort of adapter

m2_1 slot 2 slot only has four PCI Express lanes, a quarter of the total generally desired for graphics cards---but the flexibility for this tiny little