SSD M2 in GemiBook

I bought a GemiBook with Intel Celeron 1.8Ghz and I see where is a M2 slot in the back cover. In the description of the laptop, where is the possibility to put the second SSD in.
So I bought a Kingston SSD M2 with 500Gb and put it in the M2 slot but don’t work. I tried the SSD in another pc and it is Ok…
There is a fault?

is the kingston NVMe or SATA?