As the USB Type-C interface, also called USB-C, has become a universal interface, the USB Power Delivery (PD) fast charging has quickly become more and more popular. The power input ports of many electronic devices have been converted to USB Type-C interfaces, such as wireless chargers, smart speakers, e-cigarettes, fascia guns, massaging machines, portable juicers, game consoles, drones, etc. Recently, we discovered that there were new portable projectors that also adopted USB Type-C interfaces to support USB PD fast charging. Today we are going to talk about the portable projectors.