Multimedia over Coax Alliance

The Multimedia over Coax Alliance (MoCA) is an international standards consortium that publishes specifications for networking over coaxial cable. The technology was originally developed to distribute IP television in homes using existing cabling, but is now used as a general-purpose Ethernet link where it is inconvenient or undesirable to replace existing coaxial cabling with optical fiber or twisted pair cabling.

Source: Wikipedia — Multimedia over Coax Alliance (CC BY-SA 4.0)