APC AV C Type 8 Outlet Power Filter, 120V AV power protection from electrical noise interference and damaging power transients Building Wiring Fault Indicator This LED informs users of potentially dangerous wiring problems in the wall circuit. Dataline surge protection Provides protection of connected equipment from power surges on the data lines. Isolated power filter banks Eliminates electromagnetic and radio frequency interference (EMI/RFI) as a source of audio-video signal degradation. LED status indicators Quickly understand unit and power status with visual indicators. Resettable circuit breaker Easy recovery from overloads; no need to replace a fuse. (Not available on Wall Tap SKUs) Right Angle Plug Plug angle allows for equipment and furniture to be placed closer to the wall than with a standard power cord. Reduces cord stress too.