The CyberPower Home Office Surge Protector P4WSU expands a household outlet to safely and conveniently power several devices at a single location anywhere in the home. The wall tap design and swivel outlets make it easy to accommodate up to four power cords in tight plug-in locations. The four 4.2-Amp USB charging ports also swivel for efficient cord management. The P4WSU provides peace of mind with 900 joules of surge protection. The EMI/RFI Noise Filter limits electromagnetic and radio frequency interference to improve TV picture and sound quality. Plus, it's backed by a Limited Lifetime Warranty and a $75,000 Connected Equipment Guarantee. Swivel Outlets The two banks of swivel outlets provide power protection and distribution for outlets located in tight spaces, such as behind a bookcase or desk. USB Charging Ports Charge and power USB devices such as tablets (including iPad), smartphones, MP3 players, and other mobile accessories. Surge Protection Diverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage. Wall Tap Plug Plugs directly into a wall outlet; no power cord required. Safe-Fail Protection Power to connected equipment is cut when the surge protector cannot provide protection. LED Indicator Green LED indicator confirms electronics are powered and protected. EMI/RFI Filters Filters out electromagnetic and radio frequency interference to improve picture and sound quality. Sturdy Case Constructed of impact-resistant material for maximum durability. Limited Lifetime Warranty Covers defects in materials and workmanship in the product under normal use and conditions. See warranty for details. ISO & Safety Certifications All CyberPower's manufacturing facilities are ISO-9001 Quality Tested. CyberPower's products are also UL and cUL Listed.