Hi mates. Since we all know that electricity combined with lightning-strike can cause real damage to our computers and hardwares. I do recommend you to take a closer look at APC SurgeArrest, course you never know when Thor is going to swing his hammer in your neighborhood. APC SurgeArrest Performance. http://www.apc.com/products/family/index.cfm?id=176 This is NOT in commercial purpose, just some wisdoms from a experienced and caring old man. WOLF.