I'm looking for a new backup solution for: one 2011 MBP (usb 2.0, TB, firewire ports, 802.11n WiFi) one 2012 MBA (usb 3.0, TB) possibly a 2013 or 2014 machine that replaces the 2011 MBP Both laptops are equipped with relatively small SSDs, so 2 TB for the backup should be enough. I am considering the new AirPort Time Capsule (2 or 3 TB) mainly because it takes away the hassle of connecting different laptops to the same backup device, and also because I can put it somewhere where the HDD noise doesn't bother me. I've had a USB 2.0 backup disc before, which was rather slow. Questions: Would a backup via the 802.11n WiFi of my MacBooks be significantly slower than a USB 2.0 external HDD? Is there a network slowdown, e.g. if I stream on one Mac and the other does a backup, will I see a slowdown in the stream? Would 802.11ac WiFi be fast enough to hit the speed limit of a single HDD (no raid)? Are there alternative WiFi backup solutions? Of course the nerd in me wants a thunderbolt backup, but for my limited data volumes, I don't see the better speed outweigh the benefit of not having to plug anything in anywhere. I'm also happy to hear any user experience with the AirPort Time Capsule.