1、[Durable Material] Stepper motor driver is made of high quality plastic material, which is durable and can be used for a long time. 2、[High Efficiency] This stepper motor driver board is noise free operation, highest efficiency and perfect motor torque. 3、[Drive Module Use Method] Remove the 3 jumper caps under the socket. The module has no subdivision setting. The step value is calculated according to 16 subdivisions. The chip uses a differential algorithm to expand 16 subdivisions to 256 subdivisions. 4、[Stable Performance] Stepper motor driver module is exquisite in workmanship, stable in performance, and can be used with confidence. 5、[Current] The current of the stepper motor controller is 1.4A, and the maximum current is 2A, which can meet your various needs. Item Type: Stepper Motor Driver Material: PlasticWeight: Approx. 12g / 0.4oz Algorithm and adjustment of module drive current 1. Driving current algorithm: i = vref* 1.9/2.5, the default Verf is about 0.65V, so the default current is 1.4A, and the maximum current is 2A 1 x Driver 1 x Module 1 x Accessories