A:AnswerThe router will offer the same upload speed as download speed. upload/download speeds are an internet issue. Routers merely transfer data from point to point. Think of it this way: if you connected your router directly between two computers it would transfer data between them without consideration for which way the data is travelling and would only be limited by the max speed allowed by the router or the slowest computer. The same thing is true with your internet. Think of your internet provider as the "other computer". Your router will transfer data to or from the internet based on the limitations provided by your provider.
I own the same router and it works great for 400 mbps speeds via an ethernet cable. Keep in mind you may get lower speeds via wireless connection due to normal loss of signal over distance. I get 250 mbps over wireless at about 30 feet and through one wall. That's still enough speed to watch 4k streaming on about 10 devices at the same time lol. You should be fine!