I currently have the A1355 Time Capsule (2009) hard wired from the ethernet and to my computer. Then upstairs I have an Airport Express (A1408) (2011) that repeats the signal to all other devices, iPad, iPhones, apple tvs, etc. I am about to get gigabit internet installed and want to ensure I am going to take full advantage of the speeds. Both routers say they are gigabit for hard wired. My question is, since only the downstairs router is hardwired and the other modem and all other devices are connected wirelessly, do I need to upgrade either or both routers to have the fastest wireless speeds? The router set up has to be the way it is. I don't have the option to hard wire a router upstairs. Are they too old to pick up the fastest signals? Thanks for any advice/info.