JK0220 2.2A Stepper Motor Driver

JK0220 2.2A Stepper Motor Driver. High-performance stepper motor driver for use with Nema8 to Nema17 stepper motors up to 2.2A. You can adjust eight different amperage settings with approximately 0.3A resolution using the onboard switches. Similarly, you can adjust the pulse/rev setting between 200 and 25000 using the switches.