Hi,
I also own acer asipe switch 12 and I'm interested in ssd upgrade. I found this post in acer forum:
http://community.acer.com/t5/Switch-Series/Switch-Alpha-12-SA5-271-SSD-upgrade/td-p/477420
It's look like m.2 SSD. There is no room for 1,8" disk.
So the question is how open the back cover?:-).