In the field of network cabling, the performance of twisted-pair cables directly determines the stability and efficiency of data transmission. As an upgraded standard following CAT6, CAT6A (Augmented Category 6 twisted-pair cable) has become a core cabling solution for supporting high-speed networks with its superior parameter design. The following details the parameter characteristics of CAT6A from the dimensions of transmission performance, structural design, electrical parameters, and environmental adaptability.