Am looking at powered USB3 hubs for my early 2015 MacBook Air. At the moment am eyeing a HooToo 7 USB3 port, 2 charging port one. (Probably don't really need more than 4 USB ports and maybe one charging port for my iPhone.) Have two question areas that I can't resolve from what is said on Amazon. First, one of the accessories I will want to plug in is the gizmo for my Logitech wireless mouse. I understand that in some instances something causes interference and the wireless mouse won't work. Would like to know what to be on the lookout for. Second, I think I would like that kind of unit where one can unplug things like my WD hard drive and USB sticks without turning off everything. What do I look for to do that? Any guidance gratefully appreciated.