The CyberPower Surge Protector P406U prevents spikes in energy caused by storms and electrical power surges from reaching your home electronics such as audio/video equipment, laptops and desk top computers, household appliances and small electronics. The P406U provides 500 joules of surge protection, 4 Ac outlets, two Usb-a charging ports, and a braided 6 foot power cord with a right-angle plug.Features of the P406U include automatic shutdown, an Emi/Rfi noise filter, metal oxide varistor (Mov) technology, an On/Off switch with integrated 15-Amp circuit breaker, Led indicator, low profile plug, keyhole mounting slots, and damage-resistant construction.FeaturesSurge ProtectionDiverts excess voltage from sensitive electronic equipment during an Ac power surge or power spike to prevent damage.usb Charging PortsCharge Usb-a compatible devices such as tablets, smartphones, and other mobile accessories.Automatic ShutdownProtects connected electronics with the integrated circuit breaker which automatically switches off in the event of an overload that exceeds the model's ability to suppress the signal.emi/Rfi Noise FilterMaintains clean power for connected equipment by filtering out electromagnetic and radio frequency interference to improve picture and sound quality.Metal Oxide Varistor (Mov) TechnologyAllows normal current to pass through the device, while diverting any surges/spikes through the ground circuit, to safeguard connected electronics and the surge suppressor.On/Off SwitchIntegrated 15-amp circuit breaker.Low Profile Plug DesignFits tightly to the wall behind furniture.led IndicatorIlluminates to show surge protection status (Protected).Keyhole SlotsEnable the model to be securely mounted to a wall or desk.Damage-Resistant HousingEnsures maximum durability and prolongs the life of the model.