The Dual Super Fast Charger is the perfect solution for simultaneously charging two Samsung devices. It is compatible with the USB-C to USB-C cable included with the new Samsung Galaxy S21 series devices, as well as a standard USB cable. When used alone, the USB-C port delivers 25 W thanks to Super Fast Charge technology, providing the highest charging speed for Samsung devices. When both ports are used at the same time, the charger reduces the total output to 15 W for completely safe charging.