Heavy-Duty 4-Outlet Surge Protector Safeguards Your Sensitive ElectronicsIdeal for your home, office, retail or industrial workstation, this Isobar® four-outlet surge protector features a surge protection rating of 3330 joules to defend your sensitive electronic components against even the strongest power surges and spikes. Because residential power outlets have three wires-hot line (H), neutral (N) and ground (G)-the IBAR4ULTRAUSBB protects all three, covering the two protection modes: full normal mode (H-N) and common mode (N-G/H-G). NEMA 5-15R Outlets Accept a Wide Range of Electronic DevicesPlug your network hardware, retail displays, appliances, power tools and other electronics into four NEMA 5-15R AC outlets to protect them against dangerous surges, spikes and line noise. All four are widely spaced to accommodate bulky power transformers without blocking adjacent outlets. Included safety covers prevent dust and debris from falling into unused outlets. Isolated Filter Banks Provide Extra Protection against Line NoiseVarious electromagnetic and radio sources found in virtually every home and business can cause disruptive interference on the AC line. All four outlets are arranged in exclusive isolated filter banks that limit noise interaction among connected equipment. Large toroidal chokes, ferrite rod-core inductors, HF/VHF capacitors and metal oxide varistors combine to block disruptive EMI (electromagnetic interference) and RFI (radio frequency interference) line noise up to 80 decibels that can damage equipment or destroy data.2 USB Ports Share 3.1 Amps of Charging PowerThis surge protector with USB includes two ports for charging your smartphone, tablet and other USB mobile devices. Includes the Latest Safety FeaturesAutomatic shutoff permanently cuts power to outlets if protection circuit is incapacitated, preventing equipment damage and indicating replacement is required. The lighted on/off switch provides one-touch control over connected equipment. Diagnostic LEDs confirm power, protection and line fault status at a glance. The rugged metal housing is designed to endure in demanding environments, such as factories and warehouses, and withstand strong surges without burning, melting or cracking. Versatile Surge Protector Provides Multiple Installation OptionsThe surge protector with 8-foot cord also includes a space-saving right-angle NEMA 5-15P plug helps you connect to a wall outlet located behind furniture placed flush against the wall. Keyhole mounting slots allow installation on walls, counters and other flat surfaces. More from the Manufacturer