UFlex Power A Electronic Control Package - Dual Engine/Single Station - Mechanical Throttle/Mechanical Shift w/Trim - MM21TPower A MM21T Electronic Control Package Dual Engine Single Station Mechanical Throttle Mechanical Shift w Trim Power A Mark II Electronics Control Systems Private Protocol can bus for data transmission Connection of multiple stations up to 4 controls Modular System Direct communication w electronic engines (SAE J 1939 or NMEA 2000) Plug'N Play connectivity Automatic engines synchronization Dock Assist Fully programmable shift delays MM21T Package