USB 4 version 2.0 reaches 80 Gb/s in speed
USB 4, which made its debut in 2019, sees its version 2.0 become a little more detailed today, with a speed that can reach 80 Gb / s. This is double what version 1.0 offers. This will be possible with a dedicated active USB-C cable or two passive USB-C cables of 40 Gb/s each.
The specification update was announced today by the USB Promoter Group, which includes Apple, Microsoft, Intel, HP, STMicroelectronics and other groups. Specifications for USB-C and USB Power Delivery will be updated to enable a higher level of data performance, and updates are being made to enable higher performance data tunneling of USB 3.2, DisplayPort and PCIe to better take advantage of the increased bandwidth.
The USB 4 version 2.0 specifications will include the following:
- Speeds up to 80 Gb/s, based on a new physical layer architecture, using existing USB-C 40 Gb/s passive cables and newly defined USB-C 80 Gb/s active cables.
- Updates to data and display protocols to better utilize increased available bandwidth.
- Updates to the USB data architecture now allow USB 3.2 to exceed 20 Gbps.
- Updated to align with the latest versions of DisplayPort and PCIe specifications.
- Backwards compatible with USB 4 version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3.
The USB Promoter Group will publish all information in November, before the USB DevDays for developers.
