Shielded twisted pair for surface mounting with steel wire. Has a screen made of aluminum foil, protects from external influence of electromagnetic waves near underlying cables and various electronics during operation. Installation is carried out at a temperature of from -15 to +60, working range from -40 to +60. The wires are twisted with a certain pitch in order to reduce interference. The cable serves as a reinforcement element. The polyethylene used as an insulating material. black shell. Used to construct local and household networks are also in great demand in the industrial sector. It is popular with companies and individuals. Adapted to the basic network traffic on a working interface 100 Mbit / s. Performance characteristics meet the international standards.