Advanced GaN II technology: Thanks to the latest GaN II technology, the 30W USB-C charger is much smaller, with a 20% higher operating frequency, an innovative stacked design and an improved PCB structure. Multiple fast charging options: The GaN USB-C charger supports PD 3.0/2.0 QC 4.0/3.0/2.0 PPS and BC 1.2 fast charging protocols and charges most devices at a fairly high speed. Upgraded with a 30W output so you can charge your phone, tablet, earphones and even your MacBook Air with such a small charger. Safe charging: Built-in multi-protection, this Type C GaN charger protects your device from over-voltage, overheating, short-circuit, etc. which ensures the safety of you and your devices."