· This USB-C Converter is designed for converting compatible for air pro USB-C charger to charge your old version devices with interface, so it could preserve the value of your investment in chargers and make your life more convenience. Its compact and lightweight design is easy for your to take in your bag and easier to leave charger cable in different places you use instead of unplugging and plugging.. This USB-C Cable is Just a cable, you need to provide the correct power output device, then your computer device can work normally. The power output device can be a USB-C power adapter or Power Bank (Output: 15V~20V/3A~5A), and the computer will not work below 14.5V. Most Smartphone and Pad power adapter would not work. It supports 87W / 61W USB C power adapter. Please cross check with your existing product