RJ45-1CAT6 Network Cable Surge Protectors are specifically designed for the protection of twisted pair Ethernet systems with a combination of rugged and fine grain protection elements. They employ a 10kA Gas Discharge Tube per signal pair to dissipate the energy associated with large common mode surges. The silicon based secondary protection element used on each signal pair provides exceptional protection for your equipment whilst allowing network speeds up to Gigabit/1000BaseT.