Connexion—is the original variant spelling of "connection", common until at least the 18th century. The Oxford English Dictionary lists it to this day as an acceptable spelling.

Secure connexion and Ez connexion— terms used by Synergetic Vision Systems to designate their cables.

RCA connector—a plug and socket connector for two wire coaxial cable widely used for analog audio and video components.

BNC—short for Bayonet Neill Concelman, a type of connector with a center pin and a metal tube attached to the outer shield of the coax cable utilizing a rotating ring on the outside the tube.

DIN—is the "Deutsches Insitut fur Normung eV" which is the standard setting organization for Germany. DIN connectors are widely used in the audio industry and on personal computers.