70W GaN Fast Charging Block: Charge a MacBook Air M2 from 0-50% in just 30 minutes with lightning-fast 70W PD 3.0 speeds through either of the top 2 USB-C charger ports. Charge 3 Devices Simultaneously: Power up your laptop, phone, tablet, or headphones all at the same time using 2 USB C charger ports and 1 USB-A port, delivering a total output of 70W.