And if you get 3x full body vive trackers for your index, those each have a USB receiver and you need 3 more ports and they can't be consolidated for some reason. And if you want to charge those from your computer, that's 3 more ports.
I have an anker 5-port USB power hub (no data, not connected to computer) next to my machine for charging phone, headphones, earbuds, etc, and another 10-port hub for charging the 2 index controllers, 3 full body trackers, and 3 track straps with builtin batteries for extended play (for days when you feel like spending more than 7 hours in VR anyways...)
I have an anker 5-port USB power hub (no data, not connected to computer) next to my machine for charging phone, headphones, earbuds, etc, and another 10-port hub for charging the 2 index controllers, 3 full body trackers, and 3 track straps with builtin batteries for extended play (for days when you feel like spending more than 7 hours in VR anyways...)