Gallium nitride (GaN) is a high-performance charger compare to the traditional silicon used in charging devices. It achieves high power output with a compact size, ideal for charging anywhere. This 3 ports Black GaN charger equips with 2 x USB-C PD ports and 1 x USB-A QC port, together with replaceable plugs working worldwide for your laptops like MacBook Air, or tablets and smartphones, even when you're travelling abroad.