You may or may not have known this, but Apple has discontinued their Airport line of products. Many people in the Mac community were expecting this. My Comcast Router has its own WiFi, but I do use an Airport Express to extend my network. Apple does have an article about what to look for in a WiFi Router device from a third party. If you are in need of a WiFi Router or network extender like an Airport Express, then read the article. Even if you do not understand all the features mentioned you can still verify that the device you buy has the right stuff.