The device is designed to prevent energy spikes from reaching home office equipment like laptops, small electronics, and chargers. It offers 1200 joules of protection and 6 Ac outlets with a single wall tap plug. It also features two 2.1-Amp Usb ports for charging Usb-powered devices. The P600WSURC1 features automatic shutdown, an Emi/Rfi noise filter, metal oxide varistor (MOV) technology, a surge protection Led indicator, damage-resistant housing, and an anchoring screw. The surge protection diverts excess voltage away from sensitive electronic equipment during an Ac power surge or power spike, while the automatic shutdown ensures connected electronics are protected. The MOV technology allows normal current to pass through the device while diverting surges through the ground circuit. The Led indicator illuminates to show surge protection status.