Features: This 12V-24V stepper motor controller features PWM pulse modulation for precise speed adjustment and bidirectional rotation control. Offer easy speed adjustment via potentiometers and clear status indicators for easy operation. Ideal for automation engineers, enthusiasts, and industrial equipment manufacturers requiring reliable motor control solution Perfect for application like conveyor belt systems and 3D printer adjustment in workshops or production lines. With 12-24V tolerance and multiple motor compatibility, this module ensuring in robotics, and home devices. Specifications: Size:Approx. 58x39mm/1.53x2.28inch Working: 8V-24V Package Includes: 2 Optional Package: Package 1 Include:1Pc Stepper Motor Drive Controller Module Package 2 Include:3Pcs Stepper Motor Drive Controller Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.