USB interface versions are ranged from 1.0, 1.1, 2.0, 3.0, 3.1 to Type-C, and adapters are used to transform ports in an easy way. What is a USB Type-C? and what is a USB 3.1 Type-C adapter? USB Type-C is different from Type-A and Type-B, but they all are widely used in digital devices. Type-A interface we usually use on the computer, and almost all of the mobile phones and mobile devices are Type-B interfaces, mainly because it is relatively small. A lot of new produced devices require more specialized and subdivided types of interfaces, such as the Type-B interface, it is also divided into a male and female interface. What is the relationship between Type-C and USB 3.0? When to use the USB 3.1 Type-C adapter? In fact, Type-C is an interface type, 3.1 is the USB transfer standard, just as USB 2.0 is a similar industry standard. But some USB Type-C still use the USB 2.0 transmission standard, that is to say Type-C does not mean that data transmission will be faster, the transmission speed of USB Type-C interface which does not meet the USB 3.0 or 3.1 standards is not fast as well. So, if your USB Type-C interface still use the USB 2.0 transmission standard, usb type c to usb 3.1 is not possible. Type-C interfaces using USB 2.0 will not charge faster, and Type-C charging will only be faster if USB 3.1 compliant. Because USB 3.1 supports USB-PD (PowerDelivery) power supply standard, the maximum power supply can be up to 100 watts, the charging speed will indeed greatly improve.