DescriptionMade of premium material, this stepper motor driver comes with a fixed off-time current regulator, which can work in slow or mixed decay mode, very practical during use.Features-Color: Green -Material: PCB -Size: 2.00X1.50X1.00cm/0.79X0.59X0.39in - High temperature resistance, good stability - High working efficiency and low loss - Combine maximum efficiency and best motor - Reduce noise, super silent while working - Selected material, good quality