3 monitors + Cintiq with RTX 2080???

I want a Cintiq but idk if I can with my current set up. I'm using an RTX 2080 video card with 3 monitors (the main monitor is 4k, other two are 1200x1920). The last available port is usb-c. Can I just plug into that?

Any downsides to this set-up aside from desk space?

Thoughts overall? Thanks in advace