APC AV Network Manageable 15 Amp G Type Rack Power Filter, 120V Protection from electrical noise interference and damaging power transients LED & display dimmer Adjust the unit's LED and display brightness independently of each other to suit your individual tastes and environment. LED Indicators Provide easy-to-read status of the unit and utility power conditions. LED & display dimmer Adjust the unit's LED and display brightness independently of each other to suit your individual tastes and environment. Sequenced turn on/off Helps power on components in the proper order to prevent speaker stress. Proper sequencing can also help manage current draw on startup to prevent unnecessary circuit breaker tripping. Isolated filter banks Eliminates electromagnetic and radio frequency interference (EMI/RFI) as a source of audio-video signal degradation. Dataline Surge Protection Provides protection of connected equipment from power surges on the data lines. Power conditioning Protects connected loads from surges, spikes, lightning, and other power disturbances. Safety-agency approved Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment. LED status indicators Quickly understand unit and power status with visual indicators. Multiple mounting methods Allows for standardization on one product for use in different environments.