USB Promoter Group Unveils USB4 V.2.0 Specs to Deliver Up to 80Gb/s Over USB Type-C Cable and Connector

The USB Promoter Group announced the pending release of the USB4 Version 2.0 spec, an update to enable up to 80Gb/s of data performance over the USB Type-C cable and connector.

The USB Type-C and USB Power Delivery (USB PD) specs will also be updated to enable this higher level of data performance. All of these spec updates are expected to be published in advance of this year’s series of USB DevDays developer events planned for November.

Protocol updates are also being made to enable higher performance USB 3.2, DisplayPort and PCIe data tunneling to best use the higher available bandwidth.

“Once again following USB tradition, this updated USB4 specification doubles data performance to deliver higher levels of functionality to the USB Type-C ecosystem,” said Brad Saunders, chairman, USB Promoter Group. “Solutions seeing the most benefit from this speed enhancement include higher-performance displays, storage, and USB-based hubs and docks.”

Key characteristics of updated USB4 solution include:

• Up to 80Gb/s operation, based on a new physical layer architecture, using existing 40Gb/s USB Type-C passive cables and newly-defined 80Gb/s USB Type-C active cables.

• Updates to data and display protocols to better use the increase in available bandwidth.

  • • USB data architecture updates enable USB 3.2 data tunneling to exceed 20Gb/s.

    • Updated to align with the latest versions of the DisplayPort and PCIe specs.

• Backward compatibility with USB4 Version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3.

USB Developer Days 2022 will include detailed technical training covering the latest updates to the USB4, USB Type-C, and USB PD specs. Registration for the 2 scheduled events, November 1-2 in Seattle, WA and November 15-16 in Seoul, South Korea, will open shortly on the USB-IF website.

This update is targeted to developers at this time. Branding and marketing guidelines will be updated in the future to include USB 80Gb/s both for identifying certified products and certified cables.