Monster Cable MPHDP650 PowerCenter Power Blackout Line Conditioner Monster HD Clean Power Stage 1 circuitry filter dramatically reduces electronic noise. Advanced Dual Mode Plus surge protection automatically disconnects your AV equipment and sounds an alarm. 2160 Joule rating provides a high level of surge absorption. 6 ultra-wide spaced, surge protected AC outlets. Color-coded outlets are backlit for easy identification with matching cord labels.