Four AC outlets help protect connected equipment from sudden voltage spikes and surges, reducing the risk of damage to your electronics Two USB ports with Intelligent Recognition technology deliver a total of 3.1A for fast charging. They automatically adjust the current for efficient charging without the need for extra adapters. Advanced EMI/RFI filtration helps cut down electrical noise and interference to give clear audio and sharp video performance 900‑joule energy absorption rating and MOV2 fireproof technology make this unit a dependable unit against unexpected power spikes Compact indoor design comes in a space‑efficient, slim profile that fits easily into most setups