Features:1:Ultra quiet2:Large heat sink,good heat dissipation3:Support sensorless-homing function.4:Support uart mode by set jumper caps instead of welding on mks gen_l V2.0,skr1.3/1.4,mks sgen_l. Parameter:1:Default current:1.25a2:Max current:2.5a3:Logic voltage:3.3v/5v4:Input voltage:5.5v-28v5:Microstep:up to 1/2566:Mode:dir/step,uart