and NVMe SSDs: What are they and how do they benefit your PC?

2 or you want extra NVMe data storage you can purchase a PCIe to expansion card to add an additional Slot to your PC ATX motherboards have ample

You should not be worrying too much about the M+B keying as what you need is an M2 PCIe NVMe SSD which will be any such SSD you can find

m2 vs nvme slot 2 module keys Each key exposes a different set of interfaces to each card— can connect directly to the PCI Express bus, but different pins

m2 slot 2 drives are “keyed” at one end so as to prevent the end-user from inserting them in an incompatible socket PCIe NVMe drives are 'M' keyed SATA ones,