ITEM NAME:Dc 50A Double Ibt-4 Stepper Motor Driver H-Bridge Pwm For Smart Car Beus 20 B9S9 Dc 50A Double Ibt-4 Stepper Motor Driver H-Bridge Pwm For Smart Car Beus 20 B9S9 MOSFET high current (50A) H bridge driver Single chip PWM signal isolation, effective protection of SCM Can achieve positive inversion of your motor; two PWM input with frequency up to 200KHz Fully compatible with the voltage range from 3.3V to 12V Clear power indicator colour:blue Material:Metal + PC Package Contents: 1 * Motor Driver Module (5-15V/50A)