The IDEAL Electrical 85361 CAT5e Shielded RJ-45 for 0.041 in. Max. Conductors (Pack of 25) have attached metal shells that are designed to provide a continuous path for the cable shielding to pass through the connector and into the device's shielded port. Each connector has internal shield connection points on the top and bottom of the connector for cable foil or drain wire to make contact within the plug. The plugs are compatible with shielded or unshielded CAT5e cables with conductors that have a maximum insulated diameter of 0.041 in. The single piece design uses a standard cable preparation and 1/2 in. conductor trim, with the additional step of requiring the foil be folded back over the jacket, or drain wire wrapped, to ensure conductivity with the plug shield.