Features: Multiple Control: Support simultaneous control of 2 Servo to meet various Servo control requirements. Knob control: manual debugging via knob, convenient for users to adjust the Servo angle quickly and accurately. Serial control board: with serial communication function, it can connect to computer or other devices for programme control, providing more automation operate option. Servo debugging board: for Servo debugging, providing accurate control and adjustment functions, suitable for Servo system development and testing. Debugging Indicator: Equipped with indicator to show the operation status of the Servo, helping users to understand the working condition of the Servo in real time, which is convenient for debugging and troubleshooting. Specifications: Item：2Channel Servo Controller Debugging Board Size:about 47x30mm/1.85x1.18in Package Includes: 1PC 2Channel Servo Controller Debugging Board note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.