40W High-Speed Charging:The usb wall charger supports the Power Delivery and Quick Charge 3.0 fast charging functions with a total power of up to 40W. The USB-C port supports a maximum power output of 20W. Charge your iPhone devices from 0% to 58% in just 30 minutes. That's up to 3X faster than an original 5W charger block 2-Pack Fast Charging Block:Aiminu 4-port charger block is designed with Dual USB-C ports and Dual USB-A ports that can charge up to 4 devices simultaneously. You can charge your phone,tablet,and headphones at the same time,saving you waiting time