Features:

Bi-directional control for dual brushed DC motor.
Support motor voltage from 7VDC to 30VDC.
Maximum current up to 3A peak and 1.2A continuously, each channel.
Current limit protection.
Support 3.3V and 5V logic level input.
Stackable I/O header pin.
Selectable DIP switch mode for Signed Magnitude and Locked Anti-Phase.
Quick test switch for both channel.
Ready with connector for LSS05 (Auto-calibrate line sensor) for easy integration of line following robot.
NO POLARITY PROTECTION FOR V MOTOR.
Documents:

User's Manual
Sample code and library for Arduino