Protect your notebook computer from damaging surges and spikes. Dynex 500 Joule notebook surge protector is designed to fit all notebook computers. Your bulky home or office surge protector doesn't fit in your notebook's carrying case, but that doesn't mean you don't need it. ThisDynex travel-size surge protector safeguards your computer while you use it on trips and during travel.Dynex's Notebook Surge Protector safeguards your notebook's motherboard with modem, network, and broadband connection. Two and three prong AC adapters are included to fit all notebook computers. With RJ11 / RJ45 connectivity, the CPS500NBP is an ideal solution for mobile users who are using their notebooks for business or pleasure.