The SmoothStepper is a motion control device that connects to the network port of a computer or router. It accepts commands from CNC software Mach3, and produces very high quality pulse trains that drive step & direction motors. Eliminates the need for a computer with a parallel port! Generates pulses at rates of up to 4Mhz, and has 34 I/O ports. A 5 volt power supply, Ethernet cable, and ribbon cable adapter is required (not included).