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What Are USB 3.1 And Type-C, And What Is The Difference Between Them?

What interface is USB-C?

The full name of the USB-C interface is USB Type C, which belongs to the next generation of USB3.0 interface. Its highlights are slimmer design, faster transmission speed, and stronger power transmission. In addition, the USB-C interface also supports double-sided insertion. Plug in the front and back, which is more advanced than USB2.0/USB3.0.

The USB-C interface was in December 2013. The USB3.0 promotion team has announced the rendering of the next-generation USBType-C connector. Subsequently, it was ready for mass production in August 2014. Mobile phones and notebooks are beginning to be used. For example, the Nokia N1 tablet computer and Apple's 2015 new Mac12 notebook all use the USB-C interface, which can be simply understood as the fourth-generation USB interface.

What kind of interface is Type-C?

Type-C is a connection interface of the USB interface, which can be inserted regardless of the front and back. The size is about 8.3mm&TImes;2.5mm. Like other interfaces, it supports USB standard charging, data transmission, display output and other functions. Type-C was formulated by USBImplementersForum, and it became popular after being supported by manufacturers such as Apple, Google, Intel, and Microsoft in 2014.

USB Type C

USB Type C

Features of USB Type-C interface:


The old USB port is 14mm*6.5mm long, while the USB-C is only 8.4mm*2.6mm.

2. Regardless of pros and cons

Like the Lightning interface, there will be no problems regardless of whether it is plugged in or reversed. It claims to be able to withstand 10,000 repeated plugs and unplugs.

3. Fast transmission speed

The maximum transfer rate of the USB-C port is 10Gb per second, which is much faster than USB 3.0.

4. Two-way transmission

Unlike the old USB port, the power can only be transmitted in one direction. The power transmission of the USB-C port is bidirectional, which means it can have two transmission power modes.

5. Strong power supply capability

The standard specification cable equipped with Type-C connector can pass 3A current. It also supports "USBPD" that exceeds the existing USB power supply capacity, and can provide a maximum of 100W of power.

6. Backward compatibility

USB-C can be compatible with the old USB standard, but users need to purchase an additional adapter to complete the compatibility.

The difference between USB3.1 and Type-C interface

USB3.1 is an industry standard, which was initiated by large companies such as Intel. The biggest feature of USB 3.1 is that data transmission is extremely fast, theoretically the speed can reach 10Gbps. The USB Type-C is a connector specification, which consists of a Type-C plug and a Type-C socket.

In the latest USB3.1 standard, there are three interface styles, one is Type-A, one is Type-B, and the other is Type-C.

Although USB Type-C is designed based on USB3.1, it does not mean that the devices using this connection method must all support the USB3.1 standard; and contrary to what we think, for The older USB3.0 Type-A interface devices are compatible with the USB3.1 standard.

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