1Multifunction: By reading and writing data to the vehicle's engine control unit (Ecu), this cable allows you to obtain better initial acceleration, faster response time, improved brake horsepower (Bhp), torsion and power, etc. 2Improve Vehicle Performance: Ecu diagnostic cable can improve your vehicle and enable you to overtake safely and quickly. Your car will be more powerful, responsive, and fuel efficient throughout the whole rev range. 3Easy to Use: Just connect one end of the cable to the USB port of the computer and the other end to the Obd port of the car. Then, you can use the software to easily read the data and write the data to your car's Ecu. 4Practical Car Tool: This programmer cable is an indispensable tool for automobile repairmen, speed demons and Diy enthusiasts. Allows you to use your computer to significantly improve the performance of your car. 5Characteristic: The Eobd diagnostic adapter supports multiple languages, such as English, Spanish, French, German, Italian and Portuguese. Support more cars than any other OBD2, Eobd programmer tool.