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Teach you to distinguish between main USB interface!


Recently, when installing a computer, many are dumbfounded and ask such questions

"Why is there a red USB port on motherboard? What is red USB port for?"

"Why isn't blue USB port called USB3.0?"

"What are USB3.1 Gen1 and USB3.1 Gen2?"

Basically expressions look like this

Teach you to distinguish between main USB interface!

If you don't understand, you might think that USB specification will change again... It's true that USB has been constantly tossing and turning ever since it entered USB3. Something has changed! Next, Aka will give you a popular science explanation!

First of all, Aka is allowed to officially announce to everyone: The USB3.0 name no longer exists! ! ! ! ! !

Teach you to distinguish between main USB interface!

This is because USB3.0 is completely excluded from official USB IF organization. In current specification of USB standard, besides Hi-Speed ​​USB representing USB2.0 standard, there are only SuperSpeed ​​USB and SuperSpeed ​​USB 10 Gbps

According to our previous usages, SuperSpeed ​​USB is USB3.0 and SuperSpeed ​​USB 10Gbps is latest update, meaning it should become USB3.1… But obviously official USB IF organization doesn't think so I thought maybe brain was flooded, or maybe brain was smashed with a monitor, they threw out two concepts USB3.1 Gen1 and USB3.1 Gen2!

Teach you to distinguish between main USB interface!

Yes, you guessed it right, USB3.1 Gen1 corresponds to SuperSpeed ​​USB 5 Gb/s and USB3.1 Gen2 corresponds to SuperSpeed ​​USB 10 Gb/s... In past, USB3.0 was renamed to USB3.1 Gen1, and what we thought was USB3.1 was officially named USB3.1 Gen2.

Don't ask me why USB IF organization is called that, you can't argue with people whose brains are flooded or their brains are broken by monitors! So they did, what hell ... I can only say: why are you such an asshole!

Next, let's talk about detecting USB interface on current motherboard!

Teach you to distinguish between main USB interface!

The black USB port is USB2.0, blue USB port is USB3.1 Gen1, and red USB port is USB3.1 Gen2. USB 2.0 is nothing to talk about, but blue USB3.1 Gen1 is what we used to call USB3.0, there is no difference between them in terms of standards, and both have a transfer rate of 5Gbps. Red USB3.1 Gen2 is a newly added interface that used to be called USB3.1... The transfer rate of this interface has reached 10Gbps, which is currently highest specification USB interface. USB3.1 Gen2 is backward compatible with USB3.1 Gen1 and USB2.0.

Teach you to distinguish between main USB interface!

In addition to traditional USB interface, motherboard also has a USB Type-C interface. Although Type-C interface specification is not necessarily associated with a specific data transfer, USB Type-C is commonly used on motherboard. The transfer rate of interface is 10Gbps, so regardless of physical characteristics of USB interface, if transfer rate is 10Gbps, it can be called USB3.1 Gen2...

Finally, some simple conclusions

1. USB3.0 interface is usually blue, and USB3.1 Gen1 is USB3.0 with vest;

2. The USB3.1 interface is usually red, now official name is USB3.1 Gen2

3. The USB Type-C interface does not affect speed in any way. It can be used with both USB3.1 Gen2 and USB2.0. Most motherboards support USB3.1 Gen2