Really it's 433Mb/s on 5GHz and 150Mb/s on 2.4GHz. You'll want extra anyway if you use something like a media server in your home because although your internet speed is only 75Mb/s your files in your home network can use the full speed of the connection. Realistically you might get 200Mbps out of it if you're really close. Maybe 100Mbps out of the 2.4GHz side. I'd say it's probably just right for 75Mbps at the other end of your house.