Others have posted about this in the past, so a couple searches will probably find it. But I have seen posts where people have indeed used Command Strip like you mention, and Velcro (both successful). Or using 3D printed mounts such as the one @Carl mentioned or the ones I have created... Many options out there.
There was no cardboard, no box, just a USPS small flat-rate box with a bubble-wrap bag inside, containing the two items. No problem, I have usb cables left over from the pre-USB-c days, but I found it funny.
No it was an upgrade replacement, direct from Hubitat, as my C4 died after just over a year in service. It may very well be used, I don't know... perhaps an open-box return, perhaps a "refurbished" unit.
I use 3m Command picture hanging strips,. Actually in my latest attempt to clean up my installation and cool my hubs a bit I have the hubs mounted with the strips to a laptop stand with 2 fans built in, and that mounted to the wall with the strips as well.