The USB Promoter Group announced the USB4 Version 2.0 specification. It will handle up to 80Gbps data transfer rates using a USB Type-C cable and connector. According to the company, with this improved level of data throughput, the USB Type-C and USB Power Delivery (USBPD) specifications will also be modified and will be made public before the November 2022 USB Developer Days event. In order to make maximum use of the increased available bandwidth, protocol modifications are also being made to enable faster speed USB 3.2, DisplayPort, and PCI Express (PCIe) data tunnelling.
Brad Saunders, USB Promoter Group Chairman, said, “Once again following USB tradition, this updated USB4 specification doubles data performance to deliver higher levels of functionality to the USB Type-C ecosystem. Solutions seeing the most benefit from this speed enhancement include higher performance displays, storage, and USB-based hubs and docks.”
The newly announced USB4 Version 2.0 will support data transfer rates of up to 80Gbps through USB Type-C cables and connectors. In order to enable faster data transfer rates, the group stated that the USB Type-C and USB PD specifications would also be updated.
Up to 80 Gbps operation, based on a new physical layer architecture, using existing 40 Gbps USB Type-C passive cables and newly-defined 80 Gbps USB Type-C active cables are some of the key features of the upgraded USB4 solution. The USB4 version 2.0 will be compatible with the USB4 version 1.0, USB 3.2, USB 2.0, and ThunderBolt 3. Updates to the USB data architecture now allow USB 3.2 data tunnelling to reach 20 Gbps and is updated to align with the latest versions of the DisplayPort and PCIe specifications.
Ahead of the November 2022 USB Developer Days event, further information on the future version of USB4 is anticipated to be shared. The company noted, “USB Developer Days 2022 will include detailed technical training covering the latest updates to the USB4, USB Type-C, and USB PD specifications.”
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