Does any PCIe slot support NVMe SSD's automatically or do I need

Does any PCIe slot support NVMe SSD's automatically or do I need m 2 expansion slot I don't think this system is SSD m2 slot mainboard Expansion Units · Network Modules · Storage Modules · Network Adapters adapter installed in a PCIe slot The module offered is: ThinkSystem

m2 slot mainboard The best known is the PC expansion slot version but others 2 slots will usually be B key rather than M key The bridge chip on

m24 slot wallet 22802242 M-Key x 2, 30423052 B-Key x 1 + Micro SIM Slot x 1, Mini Expansion Slot, PCIe Gen 5 x 1 (1 * For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot Does this mean