This post mainly introduces USB4.
What Is USB 4
USB 4.0 firstly was announced in March, 2019.
It is written as USB4 officially.
The USB 4 is a new upgrade for the last USB product USB 3.2 released in early 2017.
What is USB 4?
it’s possible for you to get more details about the USB 4.0 from this post ofMiniTool.
Its interface is the new standard for USB C (USB pop in-C) that is under development.
More importantly, it can be used for free.
Firms are only required to pay for testing and certification.
But the corresponding cables would charge you high.
The most obvious one is its data transfer speed.
With enhanced speed, large files or folder can be copied in a rather short time.
In theory, the maximum speed of USB 4.0 can reach up to 40 Gbps.
Its not clear that the two primary USB 4.0 speeds will be called when they are released officially.
These names are technical terms for machine manufacturers.
The lowest speed of USB 4.0 is equivalent to USB 3.1s SuperSpeedPlus (10Gbps).
It is said that this speed is just a fallback speed to make it support previous USB versions.
It means that you dont expect that the USB4 gadget will be limited to the lowest speed.
To reach 20 Gbps and 40 Gbps, dual-lane cables are required.
But the specific requirements are slightly different.
It is also compatible with USB 2.0 andUSB 3.0.
Fortunately, it still supports the older speeds.
Bottom Line
The USB4 specification is already available, but the USB4 machine will occur in later.
It is likely in late 2020 or early 2021.
You just need to wait patiently.
Generally speaking, it takes around 18 months for the rig since the release of a new standard.
Thats all the information of USB4.
