The Ultimate ProtectionSmartBoard Smart Series with unique Dynamic Active Tracking is the most comprehensive and advanced solution to protect your electronic equipment. The Thor SmartBrain not only protects from surges, it also filters and cleans electrical frequency noise to give you unbeatable sound and video quality. Enjoy a truer AV experience with better picture quality and purer sound. Can also improve computer gaming speeds and fix internet dropouts. Inside The BrainSmartBrain has a premium filter technology called Dynamic Active Tracking. This unique filter has the best chance of "cleaning" electrical noise because it shields around 40% more frequencies when compared to other filters. It is an Active filter and can "clean" unwanted frequencies on both the upward curve and the downward curve of a sine wave (power). Most other filters only work at the crest of the wave and therefore miss a huge section of these unwanted frequencies that can generate noise on sensitive electronic devices.There are 5 separate earth lines which is a hum/loop reducing feature. This feature stops component cross talk and ensures isolation between the 3 x AC Banks (1 x 1 outlet; 1 x 3 outlet; 1 x 4 outlet) as well as the antenna/F type and Data connections. True circuit isolation ensures best performance for all connected equipment.