A:Answer Yeah, I was kind of wondering what else needed, etc. The description is pretty much a copy/paste off the manufacture's site, so guess there is some assuming you know what it is you're getting into even with the vendor.
But, to give you a hint as to other pieces probably needed, here's their full simulator hookups which that piece is a component of. Cool toy, but just a component of the solution you'll need.
Would hit the vendor up directly, didn't see any docs online with them for product setup (just some video setup tips and such).
https://www.ernestsports.com/indoor-golf-simulation/