He looks like Omniverse Ben 10k, but he has the third Omnitrix with Master Control activated instead of the Biomnitrix (the picture shows half of the Biomnitrix as the New Omnitrix)
Unlike 16-year-old Ben in Omniverse, he is taking his job very seriously, although sometimes he still "wants to have fun".
Omnitrix Master Control
He gained access to Master Control using Grey Matter. Since then, it took several months for him to learn using it properly.
- This version of Ben 10k is NOT married to Kai, altrough he is dating her.