Trying to get my parents set up with a backup solution for their computers. Unfortunately they do not have an AirPort Extreme or Time Capsule router that I could use the USB port for an external HDD (or the built in one). My dad has a MBP and my mom uses a Mac Mini. I bought a 4TB external HDD but was wondering if there was any way to use Time Machine both locally for the Mac Mini (where I was planning on plugging in the HDD) as well as over WiFi for the MBP. Otherwise, a new router with USB attached network storage may be the best option. Thanks for your help!