So, what is a Cat6 Ethernet Cable? Cat6 Ethernet cable is a cost-effective option for smart home installations, enterprise networks and electronic labs. It has more stringent performance specifications to enable higher speeds and more robust data transfer yet still keep an eye on a price point. With the potential for faster speeds, greater bandwidth, and less crosstalk, Cat6 cable has dominated enterprise and home networks as the cable of choice, but is being quickly supplanted by Cat6A for new installations.