The CyberPower Professional Series CSP300WUR1 Surge Suppressor is ideal for Home/Office protection with 600 joules, 3 outlets, 2 USB 2.1 Amp charging ports, and a convenient wall tap design. The surge suppressor is ideal for protecting personal computers, phones/fax/modems, printers, stereos, and other electronics. Its 2.1 Amp USB charging ports are perfect for keeping tablets, smart phones, and other rechargeable electronics ready to use. The CSP300WUR1 features three (3) outlets, wall tap plug, MOV technology to guard the surge suppressor and connected electronics against line abnormalities, and lightning surges, while EMI/RFI filters block unwanted line noise. A Limited-Lifetime Warranty ensures that this surge suppressor has passed our highest quality standards in design, assembly, material or workmanship and further protection is offered by a $50,000 Connected Equipment Guarantee.