A:AnswerNo, this oven does not come with a shelf. I don't believe that there can be a retro bought shelf as there are no hangers for a shelf inside of the oven.
A:AnswerUnfortunately each model requires it’s own mounting bracket. The holes for mounting to the wall are different as are the tabs for connecting to the Microwave.
It is really poor design by GE as there doesn’t seem to be any reason for the bracket to change from model to model - especially when the dimensions of the Microwave are identical! Also, the holes you have to drill in the bottom of your kitchen cabinet will likely be in a different location too - meaning you will need to drill new holes in the cabinet and probably use fender washers to compensate for the weakening of the wood. Again, bad engineering design. It is a good Microwave, that could be better if GE paid attention to ergonomics.