Larkbox N100 wifi card slot question

Does anyone know if the slot has pci lanes wired in and can be used with a/e to m key adapter for a second nvme? From generally available information the slot seems to be CNVio2 but the description provided by Chuwi isn’t always correct.

Minute 3:42

Check if in this video you can see it.When he open it. If not you can ask him on the comments, he will answer very fast.
Tech is out of office today and tomorrow so response will delay.