Hey guys, I have a few questions about the Airport Extreme as well as other routers. The AE has a USB port on it. Currently I use CrashPlan for backing up my MBA. I backup both to CrashPlan Central (offsite) and to a local hard drive that I have to plug into my MBA. My question is if I was to purchase an Airport Extreme, could I just plug the external hard drive into it instead of the MBA? That would be very convenient. Second question, would I be able to do that with other routers with USB ports, such as the TP-Link C7? Third question, from what I can tell the difference between the Airport Extreme and Airport Express is: No USB port, No Gigabit ports, and no AC on the Express. Is that all? If I don't use those 3 things, would everything else be the same? I am only connecting with basic devices and I don't need any of that hardcore router configuration stuff that some people do. Thanks for the info!