Feature:1. Ultra Quiet: This module allows noiseless, high accuracy chopping algorithms for silent motor movement and silent standstill, making it super quiet during the printing process.2. Powerful: This stepper motor driver module has better heat dissipation, supports higher currents and supports sensorless functions.3. Perfect Replacement: This driver has all the features of the TMC2208 and is a complete replacement for the TMC2208.4. Outstanding Performance: With an RDSon value of 0.2A, the TMC2209 driver has a lower resistively conducted output driver, providing lower power consumption and higher current.5. Exquisite Design: Uart mode is supported by applying jumper caps instead of soldering for MKS gen lV2.0, skr1.3 1.4, for MKS sgen l.Specification:Item Type: Stepper Motor DriverMaterial: PCB, aluminum alloyModel: TMC2209 V2.0Microsteps: 256 subdivisionsDrive Current: 2.8AConfiguration: STEP, DIR or UARTDefault Factory Current: 0.85ALoad Drive Motor Voltage: 5.5-28VIC Logic Operating Voltage: 3-5VProduct Application: Various 3D main control boardsRecommended Current: No more than 1.7A.Package List:5 x Stepper Motor Driver5 x Heat SinkNote:1. Verf measures the voltage of Gnd and potentiometer.2. Please do not connect the motor when measuring the voltage, otherwise the driver will be easily burned out.3. Please connect the power supply when measuring the voltage, not just the USB power supply.4. Please pay attention to the direction, please do not insert by mistake!