The Belkin 12 outlet surge protector is perfect for home and office use. With 6 regular outlets and 6 Blockspace outlets, this protector can handle even oversized printer and charger plugs. The convenient USB ports allow you to charge smartphones, tablets and more while working, surfing or checking email. This surge protector also features 3996 joules of protection to keep equipment safe and advanced power filtration to help maintain data integrity and optimal system performance.  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.