Perfect for Chromebook and MacBook® – This 100W Super Charger has been tested and certified by Google® engineers to work with current and future Chromebook devices. The USB-C® cable can provide up to 90W of power, and the USB™ Type-A port can supply up to 10W of power, allowing you to fast charge two devices at once. The power adapter supports surge, overcharging, overcurrent, and overheating protection to prevent damage to connected devices and ensures safe charging.