From CAT3, CAT5, CAT5E, CAT6, CAT7, CAT7A, and now the newly launched CAT8, with the increase of categories and more advanced versions, the bandwidth speed is also higher and faster. The currently released CAT8 Class 8 network cable standard can support 40Gb/s transmission, which is also four times the maximum transmission speed of 10GB/s that copper cables can achieve at present