The MacBook pros have been able to drive 2 4K displays at 60hz since at least 2016 (when they became thunderbolt 3). I don’t recall if that worked on the small

The MacBook pros have been able to drive 2 4K displays at 60hz since at least 2016 (when they became thunderbolt 3). I don’t recall if that worked on the smaller models, but it worked on my 15” model. I’ve been using 2 Dell P2715Qs since then and they work great.