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USB 3.1A previous generation of the USB hardware interface, introduced in 2013. USB 3.1 doubled the transfer rate from 5 to 10 Gbps. Also called "SuperSpeed+", new cables and connectors are required.
A Naming Jumble
USB 3.0 and 3.1 were renamed twice, resulting in the following three ways the same ports may be identified. Thankfully, this jumble should disappear in the future because a new naming convention was adopted with USB 4 (see USB). See USB 3.2.
USB 3.0 USB 3.1 3.0 3.1 3.1 Gen 1 3.1 Gen 2 3.2 Gen 1x1 3.2 Gen 2x1
|USB-C or High-Performance Type A|
|On the host, either USB-C or certified Type A ports must be used to handle the higher speed of USB 3.1. (Image courtesy of VESA, www.vesa.org)|
|The Simpler Reference|
|Regardless of the fact USB 3.1 is officially USB 3.2 Gen 2x1, millions of references to the simpler 3.1 designation are found everywhere.|
|USB specs are confusing to begin with, and worse yet is when products are labeled incorrectly. The SuperSpeed logo and 5 Gbps data rate define USB 3.0 and not 3.1. See USB 3.0.|
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