Six-outlet surge protector offers economical AC surge suppression for protection of workstations, desktop computers, telecom systems & more. Built-in, AC surge suppression shields your connected equipment from damage & performance problems due to transient surges. Two USB charging ports offer fast charging for smartphones, tablets, MP3 players & other portable devices. Diagnostic LED warns of suppressor damage to prevent unexpected damages. 2100-joule AC suppression rating shields equipment from surges & line noise. Two clamps feature two knobs to easily attach it to the side of your desk, workbench or table.