MRC carries over 50 products applicable to all scales. MRC is a manufacturer of power supplies and accessories for the running of model railroads. MRC power packs can include features such as speed, momentum, sound, and lighting controls. They also manufacture a command control device which can run up to nine locomotives. Prices of MRC power packs range from $30 to $200. MRC is located in Edison, New Jersey, and has been in business since the early 1940's.