The TSU-2200 is a universal 2-amp Digital Sound Decoder. It is suitable for a wide variety of models from HO to S scale, and includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches. Spefications: Dimensions: 35 x 18 x 6mm Max. Motor Stall Current: 2A Max. Function Current: 100mA (each output) Function Outputs: 6 Audio Amplifier: 2 Watts, 8-Ohm Load DCC Track Voltage: 7.5V – 22V Functioning Engine & Train Brakes 16 Bit Sound Over 50 Sound Effects Reactive DDE Hyperdrive2 Motor Control