Features: Integrated controller and driver in one module for seamlessly operation. No need for additional driver. LCD display shows speed, delay, and cycle times for precise motor control. The direction and speed of rotations can be controlled by buttons, which can adapt to more scenes. Stepper motor driver controller is also automatically change the direction through the select working modes to achieve multi-scene and multi-application. Perfect for a wide ranges of applications including robotic, CNCmachines, 3D printers, and more. Specifications: Material: Plastic Size: As shown Number of control axes: single Motor signal: common cathodes Power supply range: DC5-30V universal Driving capacity: 4Amp Acceleration and deceleration control: Yes Input reverse protection: Yes Remote communication control: TLseriality port Main functions of the system: automatic, manual, setting, seriality port control Speed ranges: 0.1-999revolution per minutes Number of forward rotations pulses: 1-9999pulses Number of reverse pulses: 1-9999pulses Number of cycles: 1-9999cycles Forward rotations delay time: 0-999.9seconds Reverse delay time: 0-999.9seconds Subdivision selection ranges: 1-32 Subdivisions Product usage environment: -5 ℃ -60 ℃ (without condensation) Package Includes: 1x Stepper Motor Driver Controller note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.