USB-C is an emerging standard for data charging and transmission. Now, it is compatible with the latest laptops, mobile phones, tablets and other devices, and over time, it will expand to almost all devices that currently use older and larger USB interfaces.　　

USB-C has a new, smaller connector shape that is reversible, making it easier to insert. USB-C cables can carry more electricity, so they are used to charge large devices such as laptops. It also provides a transmission speed of 10Gbps (twice that of USB3.0 blocks). Although the connector is not backward compatible, it can be used in older devices as the standard does.

Although the specifications of USB-C were released in 2014, this technology has been truly popular for the past two years and is now gradually becoming a substitute, not only for USB but also for other standards such as Thunderbolt and DisplayPort.　　

Typc-C connector, USB Type-C is a new micro physical connector, approximately the size of a micro USB connector. The USC-C connector can support various new USB standards, such as USB 3.1 and USB PD.

The USB interface that most people are familiar with is USB Type-A. Even though we have moved from USB 1.0 to USB 2.0 and then to the current USB 3.0, the interface modification remains unchanged. The interface is as large as before and can only be illustrated in one way. But as the device grew smaller, those huge USB ports became unsuitable, so other shapes of USB connectors such as "micro" and "mini" connectors were tried.　　

The USB-C, USB PD, and power transmission USB PD specifications are also closely related to USB Type-C. Currently, the USB 2.0 interface provides up to 2.5W of power, enough to charge a phone or tablet, but that's all. The USB PD specification supported by USB-C ups provides 100w power. It is bidirectional, so the device can send or receive power. This energy can be transmitted while the device is transmitting data through a connection. This powered device can even allow you to charge your laptop, which typically requires up to 60W of power.　　

Both Apple's new MacBook and Google's new Chromebook Pixel use the USB-C port as the charging port. USB-C is compatible with the end of all these proprietary laptop charging cables, and everything is charged through a standard USB connection. You can even charge your laptop from a portable battery pack.

Starting today, you can charge your smartphone and other portable devices. You can connect your laptop to an external monitor on the power cord. When you use it as an external monitor, the external monitor will charge the laptop, all of which are connected through a small USB Type-C.

So more and more electronic products in daily life will use USB PD interfaces, including travel converters: