Yahmach0pinteresting, I bought mine from Mobile Advance too from Amazon, but my box says AI2201_F 🤔🤔🤔
Been using my ROG 6 Pro for a few days and can confirm it is using 4G/5G bands (TMobile 44,66,71) which is a surprise since I thought I was getting a version that did not support these bands. Reception is just as good, if not better, than my S21 Ultra I upgraded from.
I purchased it off Amazon from Mobile Advance which comes with a warranty and they specifically told me this is the US version so I assume the one Asus is selling on their US store is the same model. Model on the back of my box says A12201_D.
As I said in my previous post there are too many versions and it is very difficult to find the specific specs in terms of bands supported. Asus needs to be more clear in what they are selling if they want customer trust. Put bands supported on the back of the box for example.
Enjoying the phone so far. Great build quality and looks great. Will see if it can last 3 years at least. Hope this information is helpful to those on the fence about purchasing one.