Features: brand new and high quality H-bridge, which can drive two DC motors at the same-time, with single current of 7A and high power. Optocoupler isolated input, can be directly controlled by IO-port without interference. Under-voltage protections to prevent instantaneous high current from burning the module. Control signal optocoupler isolation, power spikes voltage suppression. L298 using gates to achieve a similar control. Specifications: Material:ABS Power supply: 6.5V-27V Control voltage: 3-6.5V, PWM frequency range: 0-10KHZ Operating temperature: -25℃-80℃. Length:Approx.55mm/2.16inches Package Includes: 1x Motor Driver Board note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.