Features: Integrated controller and driver in one module for seamless operation. No need for additional drivers. LCD display shows speed, delay, and cycle times for precise motor control. Rotation direction and speed can be controlled by buttons, which can be adapted to more scenes. Stepper motor driver also automatically changes direction through the selected working modes to achieve multiple scenes and multiple applications. Perfect for a wide range of applications including robotics, CNC machines, 3D printers, and more. Specifications: Material: plastic Size: As shown Number of axes: single Motor signal: common cathode Power: DC5-30V universal Drive capacity: 4Amp Acceleration and deceleration control: Yes Input protection: Yes Remote communication control: TLseriality port System main functions: automatic, manual, setting, serial port control Speed range: 0.1-999 RPM Number of forward rotation pulses: 1-9999 pulses Number of reverse pulses: 1-9999 pulses Number of cycles: 1-9999 cycles Forward rotation delay time: 0-999.9 seconds Reverse delay time: 0-999.9 seconds Subdivision selection range: 1-32 Subdivisions Product usage environment: -5℃ -60℃ (without condensation) Note: Please allow 1-2cm error due to manual measurement, please make sure you don't mind before ordering. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Stepper Motor Driver Controller