In my opinion this dell is probably the best convertible fanless Windows tablet out there right now, it deserves its own thread. I have done a review on it here:http://computingearth.blogspot.com/2015 ... -7140.html
It can be spec'ed with 8GB (onboard) RAM. I would wish that it had an user-removable battery like Dell's 12 inch latitudes (7250 & 7240), but, have to give them some slack as apparently no one else is doing that either. At least dell made it look like it's still a manageable task to replace the battery. As to the soldered RAM, again no one else still does SODIMM for tablets. So, looks like the Dell 7140 is currently the best designed convertible fanless Windows tablet, beating last year's HP Pro x2 410 handily.