How old ARE your motherboards? My motherboard from 2014 (the one that just died) had an M.2 slot. Just never used it. My 1151 mobo (the one in the server) has one. Been using 2.5" SATA drives up until this point.Nice. I have yet to do a build with a M.2 drive, I don't even think any of my motherboards support it. I'm kinda eager to do a build just because it's been a while but reality is I don't really have the need or money so still riding on what I got now. A gaming machine would probably be my next build, be nice to get into the higher end AAA games. My current machine with my 1070 TI is more than good enough for the games I play now though.