40W USB C Charger Fast Charging Blocks:The 40W USB C Charger Fast Charging Blocks supports the Power Delivery and Quick Charge 3.0 fast charging functions with a total power of up to 40W.The USB-A port offers an output power of 3.1 A/5 V, while the USB-C port offers a charging speed of 20W.Charge your i Phone 17/16 devices from 0% to 58% in just 30 minutes. Multi 4-Port Fast Charging Plug:The 40W USB C Charger block has two USB-C ports and two USB-A ports output, support total power up to 40W. Allows you to charge 4 devices simultaneously to minimize waiting time, also save your space, one of our wall charger can instead of 4 single USB port wall chargers.