The SM2440L is an Industrial Automation control board from the JKL Corporation. It is a 24-channel, 4-axis, programmable motion controller that can handle up to 16A of current for each channel. It is equipped with integrated power-MOSFET circuit, supports RS232 and USB communication, and can be operated with either Step/Direction or Pulse/Direction modes. The controller also features built-in functions such as PID control, trapezoidal positioning, and position smoothing. It is best suited for 2-D and 3-D machinery and robotic arm control.