2-Pack USB C charger blocks: The iPhone Fast Charger Block supports Power Delivery and Quick Charge 3.0 fast charging functions, with a total output power up to 40W. The USB interface provides 3.1A/5V output power, and the USB-C interface provides 20W charging speed. This allows the iPhone 14 to charged to 58% in 30min. 40W 4-Port Charger Plug: The power adapter is equipped with 20W dual port USB-C and 15W dual-port USB charging block, which can charge up to 4 devices at the same time. When you need to quickly charge 2 devices, enjoy simultaneous charging without sacrificing charging speed with the USB + USB-C combo.