Operating Voltage: 5.5 V to 16 V Motor Channels: 2 Easy to get a medium-sized, differential drive robot running in no time Its a dual motor driver carrier The Pololu Dual High Current Motor Driver 14A 6V-16V are perfect for you. With these boards, it's easy to get a medium-sized, differential drive robot running in no time. For even better control, the VNH2 version includes current sensing and can operate a higher PWM frequency (20 KHz) than its VNH3 counterpart. The manufacturer dual high-power motor drivers are compact carriers for the VNH3SP30 and VNH2SP30 motor driver integrated circuits from ST. To keep the number of I/O lines down, the two enable/diagnostic lines on each chip are tied together. All you need to add is a microcontroller or other control circuit to turn the H-Bridges on and off. The motor drivers have maximum current ratings of 30 A continuous. However, the chips by themselves will overheat at lower currents. The actual current you can deliver will depend on how well you can keep the motor drivers cool.