Belt Drive and chain drive opener replacement. This control board is easy to install and does not need any professional help. Just takes a few simple steps and your done. You'll have your opener working properly again. Please make sure that the opener matches the model number below. Please note: While the circuit board you receive will be compatible with the opener model numbers listed, the model number and/or color of the included plastics may or may not match the model and/or color of your existing opener. This is purely aesthetic and has nothing to do with the operation of your unit.