L293D MOTOR DRIVE EXPANSION SHIELD FOR ARDUINO®

This motor shield contains two motor drivers and a 74HC595 shift register and extends the pins on the Arduino from 3 to 8, which allows controlling the direction for the motor drivers.
Features:

two L293D motor driver chips
four H-bridges
0.6 A per bridge (1.2 A peak)
thermal shutdown protection
internal kickback protection diodes
up to 4 bi-directional DC motors
up to 2 stepper motors
pull down resistors to keep motors disabled during power-up
separate logic and motor power connections
terminal block connectors for motors and power
motor voltages from 4.5 VDC to 16 VDC
2 connections for 5 V hobby servos

Specifications:

dimensions: 6.8 cm x 5.5 cm x 2 cm