ITW Linx multiline ML25- Category 5E building entrance surge protector-Primary/isolated loop (UL497/UL497B) critical for ensuring safety and performance of protection devices-100% Solid-state protection provides the fastest response to transient voltages (1-5 nanoseconds) by quickly diverting damaging surges to ground-Single pair protection- protect only the lines requiring protection-25-pair protection that fits the footprint of a 66 block. Also snap-fits to standard 89D brackets-Streamlined installation-punchdown the OSP cable on the left side in the integral 110 connectors/ Grounding hardware (included) clips on to the cable sheath. Punchdown the UTP cable on the right side into the integral 110 connections.-Individual protector cards offer system scalability and serviceability-Uses less wall space than most 5 pin block systems-Manufacturers lifetime product warranty- ITWCAT5235