PD is one of the fast charging protocols, USB PD extends the power delivery of the cable bus in USB applications by increasing power delivery through USB cables and connectors, enabling higher voltages and currents, and delivering up to 100 watts of power. USB PD is a fast charging standard developed by the USB-IF organization, and the following three obvious and powerful advantages are reason enough for Apple to choose it. 　　Powerful charging speed The USB PD power transfer protocol can be extended to a maximum output voltage of 20V and an output current of 5A, which means that the current transfer can be as high as 100W of power. The problem of battery life is already a problem that cell phone manufacturers need to solve, in the temporary can not be solved by upgrading the battery today, to improve the charging speed is a good shortcut, PD fast charging supported by the charging speed is already very good, although the terminal equipment and technology has not yet reached the high power of 100W, but you can see that it has a very considerable room for improvement. 　Uniform and user-friendly The PD standard can support multiple voltage levels such as 5V, 9V, 12V, 15V, 20V, etc., and can intelligently match the voltage to the needs of different devices such as cell phones, tablets and notebooks. In other words, all digital devices such as cell phones, tablets and laptops can be used for a common charging head, which undoubtedly greatly facilitates the daily use of users. Think about the future, just bring a PD fast charging head, you can charge the iPhone XS, iPad Pro and Macbook, is not too much more convenient? This is obviously what Apple can foresee. 　　PD fast charging is an industry trend The USB-IF organization has as many as 1020 members, and there are already as many as two dozen models on the market that use PD fast charging. In the cell phone industry as one of the vane of Apple cell phones, driven by the subsequent will be more brands of cell phones to support PD fast charging, PD fast charging unification is undoubtedly the industry trend. LVSUN is the most trusted charger manufacturer,over 22 years's factory experiences for GaN PD Charger,Wall Charger, USB Charger, Car Charger, Laptop Charger, Laptop AC adapter, Digital Camera Battery Charger, Power Bank and Wireless Charger.