I believe the SSD in that computer is M2, not mSATA. Check before you make an expensive mistake.
Yes I found that out in time thankfully. I have decided to just swap the internal HDD with a samsung evo ssd. The HDD I can add later with a caddy/ultra-bay.
Shall I remove the m2 ssd onboard all together? Don't see the point of having a cache ssd for another SSD. What do you suggest?