Although the description specifies the protector for up to 1 GB, I experience ping and connection losses on the single cable between my PC and my switch/router if protectors are installed on both ends. Reading other reviews, a replacement of the 6 inch connection cables did not solve the problem. It ranges from ping timeouts to general failures (indicating that the NIC has detected a connection loss). Removing the protector on one side solves the problem. I discovered the problem as I experienced problems with an online game after installing the protectors. First assuming game server problems, I tracked down the problem to my local network.