USB-C is a very good connector. It is so loved that it becomes mandatory among EU electronicswith others geography consider similar approachand even iPhones that hold up are how are you consider using it. Operating up to 40Gbps, it has more bandwidth than USB-A or other forms of USB, but that’s assuming you’re using the right Type from USB-C. USB-C naming has been handled with change image which only continues the confusion. And the next standard for the popular type of reversible connector will continue the twisted plot of naming USB with a confusing new identity: USB4 Version 2.0.
USB4 Version 2.0 will operate at up to 80Gbps, the USB Promoter Group announced today. USB4 currently can operate at up to 40Gbps, but can also max out at up to 20Gbps. You have to search optional USB-IF logo or check the spec sheet for details.
USB4 Version 2.0 is said to reach 80Gbps using a new physical layer architecture that, according to the USB Promoter Group, makes use of the “newly defined” 80Gbps USB-C active cable and currently existing 40Gbps USB-C passive cable.
The new USB4 type will continue the questionable USB-IF naming scheme that only its members can appreciate and the tacks-covered cork board. Once that’s all done, it’s likely that you’ll find a USB-C port i.e. 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, plus some will opt for Intel Thunderbolt certification. And for USB4 Version 1.0, you still need more information to know if the port supports the maximum speed potential of the 40Gbps specification.
Ultimately, vendors may or may not use these names, with some opting for the consumer USB-IF “SuperSpeed” brand (for example, USB 3.2 Gen 2×2 could become SuperSpeed USB 20Gbps) or listing only max speeds.
Leveraging Intel’s Thunderbolt protocol for the first time, USB4 introduces the tunneling protocol to the USB specification. With display data and data protocol updates, USB4 Version 2.0 will leverage higher bandwidth for “higher performance USB 3.2, DisplayPort, and PCI Express data tunneling to use higher available bandwidth,” according to the USB Promoter Group announcement. USB 3.2 data tunneling will reportedly exceed the specification’s maximum data transfer rate of 20Gbps.
USB4 Version 2.0 will also come with the latest DisplayPort and PCIe standards, the announcement said.
The sadly named new specification should be published in November, alongside the relevant updates for USB Type-C USB-IF and USB Power Delivery specification.