U=manufactured for sale in the US. The versions sold in the UK and Canada do not have the U. Not sure if there are any material differences in the features as I have not checked this closely. Great display IMHO after several weeks of use.
I just took delivery of this model as well. It looks great out of the box. I turned contrast and brightness way down but I don't have AVIA or VE here. Any advice on setup/preferences?