25/4/2019 · Ethernet cable can be divided into Cat5, Cat5e, Cat6, Cat6a, Cat7, Cat8, etc. However, not everyone knows Cat6 vs Cat7 vs Cat8 differences. Cat8 cable, or category 8 cable, is an Ethernet cable which differs greatly from the previous cables in that it supports a frequency of up to 2 GHz (2000 MHz), and is limited to a 30-meter 2-connector channel.