Samsung Microwave Selector Button Module DE96-00789A 3.74 x 2.56 x 0.98 Genuine OEM. This is a Genuine OEM Samsung part. This selector button module (part number DE96-00789A) is for microwaves. Selector button module DE96-00789A sends electronic signals to the control board when you push the selector buttons. Because high-voltage cap... - Samsung Microwave Selector Button Module DE96-00789A 3.74 x 2.56 x 0.98 Genuine OEM.