(Often the integrated wiring system will be updated every seven years. It took five years to go from Category 3 to Category 5 system. It took only three years to replace Category 5 system with Category 5 system. Now, Category 6 system is old. It has been widely used, and it is now a trend to terminate Gigabit Ethernet on Category 6 systems, and the standards for Category 7 systems are being formulated and started to be implemented. Bringing the copper cabling system to the extreme is the latest in 10 Gigabit copper cables. Program.)