Charge 2 Devices at Once: With 27W from one USB-C port, and 20W from the other, you can fast charge your iPhone and your iPad at the same time. High-Speed Charging: Utilize either USB-C port to provide up to 45W of power to charge a MacBook Air or other USB-C notebooks at impressive speeds. Advanced Safety with ActiveShield 2.0: Anker&';s proprietary technology intelligently monitors temperature over 3 million times per day, providing twice the protection of ActiveShield 1.0 and ensuring the longevity of your devices. Compact and Powerful: Experience 47W of power in a charger that&';s roughly the same size as an original 20W charger, making it an ideal travel companion without sacrificing performance. Comprehensive Package: Receive the Anker 523 Charger (Nano 3, 47W), a welcome guide, an 18-month worry-free warranty, and friendly customer service (note: charging cable not included).