Listen to the sound clip Optimus prime power from Optimus Prime Soundboard: Optimus prime power Optimus prime power This sound is from Optimus Prime Soundboard OPTIMUS PRIME is is the fictional commander of the main protagonist group in the Transformers. He is the largest, strongest, and wisest of all Autobots. Check out his clips here Transformers fans! Go to the full soundboardwith more sound clips Search