Features: 5V isolated with MCU, effectively protecting the MCU; 5V power indicator on board. Voltage indication for the motor driver's output end; can solder a heatsink. Requires only four lines from the MCU to the driver module (GND, 5V, PWM1, PWM2); isolated chip 5V power supply (can be shared with MCU 5V). Can reverse the motor forward, two PWM input frequencies up to 25kHz; two heat flows passing through a fault signal output. Isolated chip 5V power supply (can be shared with MCU 5V), can also use the onboard 5V power supply; supply voltage 5.5V to 27V. Specifications: Material: ABS Size: Approx. 5x5cm/1.97x1.97in Note: Please allow 1-2cm error due to manual measurement; ensure you don't mind before ordering. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1 Set BTS7960 Motor Driver Module