I bought 2 surge protectors from APC, one for landline and one for ethernet. With millions of dollars of home devices connected to a landline phone and Ethernet network, these devices offer some level of security. While I have surge protectors for my whole house, it doesn't protect a landline phone or network cable and attached devices, so I find them absolutely necessary. (I also have something similar for my cable TV that has been reviewed elsewhere). After installation, I haven't noticed any degradation in my landline phone connection or broadband speed. One day I will post pictures of my data/comms/TV center showing these devices. Please try again in about a month.
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