Item Name: Accessories TMC2226 Driver Stepper Motor Driver Module Heat Sink Mainboard. Recommend current:1.72A (at most)100% Brand New And High QualityDefault current:0.88AType: Stepper Motor Driver ModuleMode:dir/step,uartMicrostep:up to 1/256Logic voltage:3.3V/5VMaterial: MetalInput voltage:5.5V-28VColor: As shownSize: As shownMax current:2AFeature:1. Large heat sink,good heat dissipation.2. Support sensorless-homing function.3. Support uart mode by set jumper caps instead of welding on mks gen_l V2.0,skr1.3/1.4,mks sgen_l.Package Includes: 1 Set Stepper Motor Driver ModuleNotice:1.1cm=10mm=0.39inch.2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering.3.Please understand that colors may exist chromatic aberration as the different placement of pictures. *Please make