According to the USB Promoter Group, USB 4 version 2.0 will handle up to 80Gbps data transfer rates using a USB Type-C cable and connector. In order to achieve the promised performance, the organisation also stated that USB Type-C and USB Power Delivery (USB PD) requirements will be modified. Backward compatibility with the original USB 4 version is another feature of the USB 4 Version 2.0. Before the November 2022 USB Developer Days event, further information on the USB 4 Version 2.0 specification is anticipated to be made public, according to the group.
According to a press release from the USB Promoter Group, which consists of Texas Instruments, Apple, HP, Intel, Microsoft, Renesas Electronics, and STMicroelectronics, USB 4 version 2.0 will support data transfer rates of up to 80Gbps through USB Type-C cables and connectors. The USB Type-C and USB PD specifications will also be updated, according to the group, to allow the faster data transfer rates.
According to the USB Promoter Group, the USB 4 version 2.0 is built on a new physical layer architecture that utilises current 40Gbps USB Type-C passive cables and "newly-defined" USB Type-C active cables. Additionally, the organisation is working on protocol improvements to better match USB 3.2 data tunnelling with the most recent versions of DisplayPort and PCle data tunnelling and to enable rates greater than 20Gbps.
The USB 4 version 2.0 will be compatible with the USB 4 version 1.0, USB 3.2, USB 2.0, and ThunderBolt 3. Ahead of the November 2022 USB Developer Days event, further information on the future version of USB 4 is anticipated to be shared, according to the USB Promoter Group. The group continued, "The event will also include technical training covering the recent improvements to USB 4, USB Type-C, and USB PD."
A spokeswoman for the USB Implementers Forum (USB-IF), Joe Balich, told The Verge that once the subsequent version of USB 4 is released, a USB 4 cable with a 40Gbps rating will be able to reach twice its present data transmission speed.
