Cherry G84 4100 Keyboard
This is a interesting keyboard mechanical key switch, the Cherry ML switch.
it's mechanical switch with shallow depth. Kind of in between a full sized key and laptop type of key.
the key travel distance is 3mm. The Cherry MX is 4mm. [see Guide to Keyboard Key Switch Mechanisms]
here's a good video review.
If you have a question, put $5 at patreon and message me.