In the event of a surge, the Monster 101956 FireProof MOV surge protector has it's MOV encased in ceramic to contain the excess heat, making your first line of defense against home electrical fires. Features Dual Mode Plus Surge Protection for even the most powerful power surges. It's equipped with a Power line Ethernet adapter for easy setup of a more reliable internet connection. Also comes with Cable/Satellite connections to protect entire AV system. Plus enjoy better picture and sound with the Monster Clean Power Stage 2 Noise Filtration.