The latest type of twisted pair in the ISO/IEC 11801 Class 7/Class F standard is mainly designed to adapt to the application and development of 10 Gigabit Ethernet technology. But it is no longer an unshielded twisted pair, but a shielded twisted pair. Therefore, it can provide a comprehensive attenuation to crosstalk ratio of at least 500MHZ and an overall bandwidth of 600MHZ, which is more than twice that of Category 6 and Super Category 6 lines, with a transmission rate of up to 10Gbps. In the seven types of cables, each pair of wires has a shielding layer, and the four pairs of wires together have a common large shielding layer. From a physical structure perspective, the additional shielding layer allows for a larger wire diameter for Class 7 wires.
Another important difference lies in its ability to connect hardware. The parameters of the seven types of systems require that all line pairs of the connector provide at least 60DB of comprehensive near-end crosstalk at 600MHz. The super five class system only requires 43DB at 100MHZ, while the six class system requires 46DB at 250MHZ.