USB-C naming somehow gets worse with USB4 version 2.0

A close-up shot of a USB-C cable plug.

USB-C is one connector. Adored enough to become a must-have among electronics in the EU, other regions are considering similar approaches, and even the tolerant iPhone is reportedly considering using it.Runs at up to 40Gbps, with more bandwidth than USB-A and other forms of USB, but that’s assuming you’re using the right methods type of USB-C. The USB-C naming is ready for a brand change that only causes confusion. And the next standard for the popular reversible connector type furthers the twisted storyline of USB naming with a new bewildering identity, USB4 version 2.0.

USB4 version 2.0 will run at up to 80Gbps, the USB Promoter Group announced today. Current USB4 can run up to 40Gbps, but it can go up to 20Gbps as well. The only way to know is to look for the USB-IF logo on the option or check the spec sheet.

USB4 version 2.0 is said to reach 80Gbps using a new physical layer architecture that leverages “newly defined” 80Gbps USB-C active cables and existing 40Gbps USB-C passive cables, according to the USB Promoter Group. I’m here.

The new breed of USB4 continues the USB-IF’s dubious naming scheme that only its members and corkboards covered with thumbtacks and strings can truly appreciate. After all, it looks like you can find USB-C ports that are USB4 version 2.0, USB4 version 1.0, USB 3.2 Gen 2×2, USB 3.2 Gen 2, USB 3.2 Gen 1, or USB 2.0. Some opt for Intel Thunderbolt certification. Also, for USB4 version 1.0, more information is needed to know if the port supports the spec’s maximum potential speed of 40Gbps.

Ultimately vendors may or may not use these names, and USB-IF’s consumer “SuperSpeed” brand (e.g. USB 3.2 Gen 2×2 could become SuperSpeed ​​USB 20Gbps) or just list the max speed only.

By leveraging Intel’s Thunderbolt protocol for the first time, USB4 introduced protocol tunneling to the USB specification. With updates to the data and display data protocols, USB4 version 2.0 leverages higher bandwidth for “higher performance USB 3.2, DisplayPort, and PCI Express data tunneling,” according to a USB Promoter Group announcement, resulting in higher utilization. Make the most of your available bandwidth. USB 3.2 data tunneling is reported to exceed the specification’s maximum data transfer rate of 20Gbps.

USB4 version 2.0 will also support the latest DisplayPort and PCIe standards, the announcement said.

The disastrously named new specification is set to be published by November 2022, along with relevant updates to the USB-IF’s USB Type-C and USB Power Delivery specifications.

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