Panamax MAX&reg; 5300-PM Power Line Regulator & Surge Protector (Certified Refurbished) This Certified Refurbished product is tested & certified to look and work likenew. Clean Power Level 4  AVM (Automatic Voltage Monitoring) High Current Outlets  USB Charger Gaming LAN Port  Improves picture and sound quality Level 4 Power Cleaning and Filtration eliminates common symptoms of contaminated power