R7000 power compsuption Is 30W too much for antenna port?

So I was looking into getting a wifi antenna to another house, but the wattage is a little confusing for me.

Is pulling 30 watts from the antenna too much for the anntena port?

This is the antenna I'm hoping to use by the way:

https://www.ebay.com/itm/391948165720

I know the power supply is rated for 42 watts. So the router would be left with 12 watts but is that enough for it? Or would that not be enough for it, or would the antenna straight up fry the router?

Would like some assistance please.