Difference b/w keys for the X1 Yoga 2nd Gen and 3rd Gen

[39fja0dkg]

Hi all,

Does anyone know whether the keys for the X1 Yoga 2nd Gen are the same kind for the 3rd Gen?

I have checked the photos of both keyboards, and they seem to be the same however the part numbers for the keyboard for X1 yoga 2nd and 3rd Gen, have different numbers, might be only the connectors different but could be also the button itself.

Does anyone know definitively?

Thanks