Features: brand new and high quality Excellent Heat dissipation. TMC5160 for Pro V1.1 is a stepper motor driver with ultra-quiet mode and small heat. TMC5160 for Pro V1.1 is not easy to lose step and can prevent the motor from shaking. TMC5160 for Pro V1.1 is a high-power stepper motor drive controller chip with external expansion rate MOS tube, the maximum current can reach 3A. TMC5160 for Pro V1.1can drive 57 stepper motors, Stepper motor torque control or sensorless home can be achieved. Specifications: Model Number: TMC5160 for Pro V1.1 Maximum current: 3A Product Size: 15.3mmx20.4mm Power Supply Voltage: 6V-56V Maximum Current: 3A Maximum Subdivision: 256 Package Includes: 1 x TMC5160 Pro Stepper Motor Driver Module note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!