PRODUCT DESCRIPTION Surge Protection Safety If a surge protector ever becomes hot to the touch, shut off the unit immediately. Never daisy chain power strips to other power strips or extension cords. Never allow a power strip to be exposed to a moist environment. Avoid running too many high energy consuming appliances through a single surge protector at once. High-energy consuming electronics/appliances include window AC units, space heaters, refrigerators, washers/dryers etc. Only one power strip should be plugged into a single two outlet electrical socket. Never cover a surge protector with carpet, furniture, or anything that would limit or prevent air circulation. IMPORTANT: The protective components inside surge protectors that absorb over voltage spikes will eventually wear out, as most estimates put the average lifespan of a surge protector from 3 to 5 years. The USB ports are intended solely for charging devices. They cannot be used as a USB hub and do not transmit data. Belkin is an established accessories market leader creating high-quality, innovative tech solutions for 40 years. FROM THE MANUFACTURER Surge Protection Safety If a surge protector ever becomes hot to the touch, shut off the unit immediately. Never daisy chain power strips to other power strips or extension cords. Never allow a power strip to be exposed to a moist environment. Avoid running too many high energy consuming appliances through a single surge protector at once. High-energy consuming electronics/appliances include window AC units, space heaters, refrigerators, washers/dryers etc. Only one power strip should be plugged into a single two outlet electrical socket. Never cover a surge protector with carpet, furniture, or anything that would limit or prevent air circulation. IMPORTANT: The protective components inside surge protectors that absorb over voltage spikes will eventually wear out, as most estimates put the average lifespan of a surge protector from 3 to 5 years. The USB ports are intended solely for charging devices. They cannot be used as a USB hub and do not transmit data. Belkin is an established accessories market leader creating high-quality, innovative tech solutions for 40 years.