Power outages caused the surge protector wouldn't work after may be two times during the last 25 years or so. Computer, TV, recorder, players....on the strip were all good. They were the high priced with high joules surge protectors. This one doesn't have coax protected because it is a lower price has only 2100 joules too. I bough it because it is HDR and I will use it for like bluray players....