

M.2 is just a connector standard. Depending on the motherboard and the type of m.2 (like type E or type M), different signals can be routed to that connector/slot: SATA, pcie, even USB! Probably more things I don’t know about.
mSATA is an old standard which basically is totally unused today. SATA over m.2 is a newer standard which seems wine l some usage.
I don’t know about mPCIE but it also sounds like an older standard than pcie over m.2, and probably not compatible.









Who won?