A+ in transcript and GPA In the past (historically), A+ was a bonus in transcript and had an effect on the cumulative GPA too, but it is no common these days (at least I do not see around). If some universities/colleges use A+ in the transcript, but it is equally considered as an A in calculating the GPA.

Is A+ obsolete in the US universities/colleges? or because they use it for rare occasions, we do not normally see it?

In other words, are there still universities using A+, and equaling it to 4.3 in calculating the GPA?
How an A+ is treated varies from school to school. In the traditional American grading system, an "A" contributes a 4.0 to one's GPA, an "A-" contributes a 3.7, a "B+" contributes a 3.3, a "B" contributes 3.0, etc. In many universities, 4.0 represents the maximum possible GPA, and so an A+, although it may appear on the transcript next to a course, also only contributes 4.0 to one's GPA. At other universities (such as e.g. Columbia), an A+ contributes 4.3 to one's GPA. 

None of this matters very much of course.