USB Promoter Group has introduced the introduction of its newest normal, USB4 2.0, making the USB naming standards even worse than it already was.

USB4 2.0 Introduced: Brings Even Worse Naming Scheme, 80 Gbps Transfer Speeds, Compatible With Existing Cables

In its official press launch, the USB Promoter Group has said that the brand new USB4 2.0 normal can be bringing the quickest ever speeds on a USB cable. The new normal will be capable to provide as much as 80 Gbps switch speeds, doubling the switch charges of USB Type-C Thunderbolt 4, & permitting full-on compatibility with present USB4 succesful (40 Gbps passive) whereas additionally supporting the newer 80Gbps Type-C lively cables.

The entire USB normal has all the time been a large number so far as the naming scheme goes with the likes of USB 3.0/3.1/3.2 and their a number of iterations (Gen 1, Gen 2, Gen 2×2) and now the identical is true for USB4 which has reached its second variation as an alternative of merely calling it USB5. The following tweet from @Ghost_motley is sufficient to spotlight the issue right here:

USB Naming Standards…

USB 1.0

USB 1.1

USB 2.0

USB 3.0

USB 3.1

USB 3.2

USB 3.2 Gen 1

USB 3.2 Gen 2

USB 3.2 Gen 1×2

USB 3.2 Gen 2×2


USB4 Version 2.0

— Charlie (@ghost_motley) September 1, 2022

Press Release: The USB Promoter Group right this moment introduced the pending launch of the USB4 Version 2.0 specification, a significant update to allow as much as 80 Gbps of information efficiency over the USB Type-C cable and connector. The USB Type-C and USB Power Delivery (USB PD) specs can even be up to date to allow this larger stage of information efficiency. All of those specification updates are anticipated to be printed upfront of this yr’s collection of USB DevDays developer occasions deliberate for November.

USB Naming Gets Even Worse With The Introduction of USB4 2.0 80 Gbps Standard 2

Protocol updates are additionally being made to allow larger efficiency USB 3.2, DisplayPort, and PCI Express (PCIe) information tunneling to finest use the upper obtainable 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,” mentioned Brad Saunders, USB Promoter Group Chairman. “Solutions seeing the most benefit from this speed enhancement include higher-performance displays, storage, and USB-based hubs and docks.”

Key traits of the up to date USB4 resolution embody:

  • Up to 80 Gbps operation, primarily based on a brand new bodily layer structure, utilizing present 40 Gbps USB Type-C passive cables and newly-defined 80 Gbps USB Type-C lively cables.
  • Updates to information and show protocols to higher use the rise in obtainable bandwidth.
    • USB information structure updates now allow USB 3.2 information tunneling to exceed 20 Gbps.
    • Updated to align with the newest variations 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 embody detailed technical coaching protecting the newest updates to the USB4, USB Type-C, and USB PD specs. Registration for the 2 scheduled occasions, November 1-2 in Seattle, WA, and November 15-16 in Seoul, South Korea, will open shortly on the USB-IF web site (

This update is particularly focused at builders right now. Branding and advertising pointers can be up to date sooner or later to incorporate USB 80 Gbps each for figuring out licensed merchandise and licensed cables.