Frank, my Sharp microwave is in the motorhome across town in storage and I have no idea what model it is. The RV is a 2012 model and the microwave is "original equipment." It has two racks like those you posted above, and a glass turntable. The racks are only to be used for the convection feature and not for microwaving. I'll look around and see if I have the user manual for that oven, but I'm pretty sure it's in the RV.