1. Material: Plastic and electronic components.it is durable and long lasting use
2. Size: About 2 * 1 * 1cm/0.79 * 0.39 * 0.39inch(L*W*H).
3. Suitable for driving below 8.2V ~ 45V 2.5A stepper motor.
4. Six different stepping resolutions: full, half, 1 / 4,1 / 8,1 / 16,1 / 32.
5. Adjustable current control lets you set a potentiometer, which lets you use the stepper motor's rated voltage or more, in order to achieve a higher rate of maximum output current step
6. Maximum 45 V supply voltage
5* DRV8825 Stepper Motor Driver Module