Yes, but if your looking to just get more wireless converge there are cheaper options. This is meant to replace your router and be the main units through out the house and you can add up to 4 units per setup which is nice. This should be enough for 4000 sq. but with wireless you just never know. There are so many things that effect it example walls, other wireless devices etc. So a lot of it is trail and error and don't believe what they put on the box about how much coverage you can get. They get these numbers by doing testing in a perfect environment.