Features: L298N as main chip ST corporation production. Low heatoutstanding anti-interference performance. High working power to 46vlarge current can reach 3A MAX and continue current is 2A power to 25w. Can drive one 2-phase stepper motor one 4-phase stepper motor or two DC motors. Built-in 78M05get power from drive powerhowever when drive power over12V please use the external 5v power as power supply. Large capacity filter capacitanceafterflow protection diode more stable and reliable. Specification: Double H bridge drive Chip: L298N (ST NEW) Logical voltage: 5V Drive voltage: 5V-35V Logical current: 0mA-36mA Drive current: 2A(MAX single bridge) Max power: 25W Size:43 x 43 x 26mm Net weight: 26g Note: This module has a built-in 5v power supply when the driving voltage is 7v-35v this supply is suitable for power supply DO NOT input voltage to +5v supply interface however ledding out 5v for external use is available. When ENA enable IN1 IN2 control OUT1 OUT2 When ENB enable IN3 IN4 control OUT3 OUT4 Package contents: 1x L298N Dual H Bridge DC Stepper Motor Drive Controller Board Module