ITEM NAME:66Punch Down 50Pair Wiring Block Connect 66-IDC And Description: Quick-Connect 66-IDC and 110-IDC 50-Pair Modular Split 66-IDC Type Wiring Blocks Flame Retardant Thermoplastic Construction Used in equipment rooms and wiring closets to connect telephone systems, PBX systems and other low-speed terminal equipment Specification: Size: 205x44x40mm Package Includes: 1x Wiring Block SKU: FUZ0025269663019247.1x Wiring Block. 50-Pair Modular Split 66-IDC Type Wiring Blocks. Quick-Connect 66-IDC and 110-IDC.