EverActive GaN SC-390QB wall charger with USB QC3.0 port and USB-C PD PPS 30W. What is a GaN charger? GaN technology represents a completely new quality in efficient chargers. Gallium nitride is an innovative semiconductor material that replaces the traditionally used silicon. The use of gallium nitride allows for higher voltage conduction and greater power transfer, resulting in less energy lost as heat. This enables the GaN-based charger to significantly reduce its dimensions and weight while charging faster and more effectively. To fully leverage the potential of this new technology, the circuit board in such a charger can be designed in a multidimensional way to maximize the volume of the casing. High-quality insulating materials ensure the highest level of safety and protection against electric shock.