This driver module is made using L298N, a high current, high voltage dual full bridge driver manufactured by ST company. It is designed to accept standard TTL voltage levels and to drive inductive loads such as DC Motors, Stepper Motors, Relays, and Solenoids. This Dual H-Bridge driver is capable of driving voltages up to 46V and continuous current up to 2A in each channel.
https://www.sparkfun.com/datasheets/Robotics/L298_H_Bridge.pdf
https://www.sparkfun.com/datasheets/Robotics/L298_H_Bridge.pdf