USB stands for Universal Serial Bus, a common type of interface used to connect devices to computers or other devices. USB has gone through several generations of development, with each new version offering faster data transfer speeds and other improvements.   USB-C is a newer type of USB connector that was introduced in 2014. It has a smaller and more symmetrical design than previous USB connectors, making it easier to use and more versatile. USB-C is also capable of carrying more power, allowing it to charge devices more quickly.   One of the biggest differences between USB and USB-C is their physical design. USB has a rectangular shape with a Type-A connector on one end that plugs into a computer or charger, while USB-C has a more oval shape with a Type-C connector that can be plugged in either way up.   Another significant difference is the data transfer speeds they can offer. While earlier versions of USB could only offer a maximum data transfer rate of 480 Mbps, USB-C can provide data transfer speeds of up to 10 Gbps, which is almost 20 times faster than USB 2.0.   USB-C is also more versatile than USB, as it can be used for more than just transferring data and charging devices. It can also support video output, audio output, and even Ethernet connectivity, allowing it to be used as a one-stop-shop for a range of different devices.   Overall, USB-C is an upgrade over previous USB versions, offering faster data transfer speeds, more power, and greater versatility. However, USB is still widely used and is backward compatible with many devices that use older versions of USB.   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.

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.