This Microsoft power adapter is designed for use with the Surface Book and Surface Pro 3. It is a high-quality accessory that ensures your device is always fully charged and ready to go. The adapter is made specifically for Microsoft products and is compatible with the Surface Book and Surface Pro 4 models. The adapter is black in color and is a Type power adapter. It is perfect for those who need a replacement or an extra adapter for their Microsoft device. The adapter is made by Microsoft, ensuring that it is of the highest quality and is designed to work perfectly with your device.