Telebox has solved the problem of how to separate wires for assignment without harming Category 5 performance. We proudly introduce the new Telebox Fully Shielded Modular Plug. Easy to Assemble: All you have to do is strip your cable, insert your wires into our specially designed Insert Unit, cut the surplus wires at the end of Insert Unit and snap the full product together. Much Better Next performance: With our new Insert Unit you only have to untwist a very small amount of wire (7mm), which means you will get better NEXT for CAT.5 patch cord. In addition, our specially designed Strain-Relief Hook holds the cable firmly without flattening or affecting twisted wires. Fully Shielded: Our metallic Shield Cover completely encloses the unit, meet the EMC requirement. Color Coordinated: After assembly, the unit can be placed in our AT Plug Cover (Part No. TA56-XX), Which provide color coordination of line assignments.