In the evolution of twisted-pair cabling standards, CAT7 (Category 7 cable) is a high-end solution designed for high-frequency, high-bandwidth scenarios. Compared with CAT6A, CAT7 achieves stable transmission of ultra-high-frequency signals through stricter parameter design and structural optimization, becoming a core cabling technology supporting next-generation high-speed networks. The following comprehensively analyzes the parameter characteristics of CAT7 from the dimensions of transmission performance, structural innovation, electrical parameters, and environmental adaptability.