Belkin PureAV F9A1033fc10 10-Outlet Isolator Home Theater Surge Protector (Gray/Silver) (Discontinued by Manufacturer) 4720 joule energy rating - highest-quality absorption protects your sensitive entertainment components from surges, spikes, and lightning 10-foot heavy-duty power cord delivers clean power through 14-gauge wiring with a straight plug Power filter technology (PFT) isolates contamination to prevent AC and EMI/RFI to help provide quality sound and picture Satellite, cable TV, antenna coaxial protection - protects connected components with one pair of gold coaxial connectors designed to improve signal; also protects cable modems