Some surge protectors include telephone and coaxial pass-through connections for protecting DSL and cable-/satellite-TV connections. Phone jacks and coax connectors don’t add much to value to a surge protector. (You do have multiple backups of your data, right?) Getting ahead of a problem that may be unlikely but not improbable saves you from the enormous consequences if it occurs. You want to make the modest investment in a surge protector for the same reason you want to have a backup of your data: because there’s no going back after an adverse event. The surge protector takes a hit instead of your hardware or A/V system, and it could potentially save you hundreds to many thousands of dollars, depending on what you have connected. Such power mediators have a single function: keeping voltage from exceeding a certain rated level, beyond which equipment can blow a fuse, burn out its power supply, or completely fry its circuitry beyond repair. These reviews are of surge protectors designed for a home office or a home-entertainment system. For that, you’ll need to step up to an uninterruptible power supply (UPS), which combines a continuously charged battery backup, power conditioning, and surge protection.
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