ITW Linx TowerMax CAT6-75 Surge Supressor is the industry standard for lightning protection. The Category 6 primary surge protector is the only choice for protecting sensitive network routers, WAPs, PBX/KSUs, and workstations from lightning and transient voltage surges. The 4 pair version uses the patented Linx Cat 6 Circuit Technology to ensure total protection. For use with high performance 4 pair Cat 6 Outside Plant Cables as well as Cat 6 UTP cables. 100% solid-state protection for fast reliable response to surge events, UL listed per UL497 for building entrance protection, and meets TIA568 for Cat 6 performance. Cat 6 performance verified by independent laboratories.