Features:
The Motor Shield is based on the L298 , which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors.
It lets you drive two DC motors with your board, controlling the speed and direction of each one independently.
You can also measure the motor current absorption of each motor, among other features.
Motor drive voltage: external input 3-35V, internal input: 6-12V
Max current 2A per channel or 4A max (with external power supply)