I bought this laptop and wanted to add a few pieces of info:
* The m.2 22x80 slot supports NVMe PCI-Express 3.0 x4 drives (such as the Samsung 960 EVO I installed)
* Chassis can be opened with a T6 screwdriver and something flat to undo the clips on the perimeter (I used a small flathead bit)
* Here is a pic of the chassis opened: i.imgur.com/ijWsfBB.jpg
(sorry can't post clickable links)
* The hard drive is under the bottom-left shield, the m.2 slot is under the top-right shield.
* I did not find ram slots, but then again, I was not able to remove the top-center shield (heatpipes are running through it, so I am assuming CPU and GPU are located there). So I would assume, for now, that ram is NOT upgradable.
* Fingerprint sensor is not of the same quality compared to what an iphone or Nexus 5X offers. I most often need two or three tries until my finger is recognized. Many fingerpress are simply not recognized (i.e. no response at all from laptop).