what is an rga connection
An RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals.he name phono plug is sometimes confused with a phone plug which may refer to a quarter-inch  phone plug  - Tip/Sleeve (TS) or Tip/Ring/Sleeve (TRS) connector-or to a 4P4C connector used for a telephone (which is often, though incorrectly, called RJ9, RJ10, or RJ22).