[12:04 Sat,3.September 2022 by Thomas Richter] |
The USB Promoter Group has announced the publication of the specification for USB4 version 2.0. This brings an increase in data rate to up to 80 Gbit/s (10 GB/s) via USB-C cables and connectors - however, this requires new controllers, meaning "old" USB4 devices will not support the new speed. In addition, the specifications for USB-C and USB Power Delivery (USB PD) are being updated to set the stage for this higher speed, which will primarily benefit devices such as displays, storage systems and USB-based hubs and docks. USB4 2.0 devices will be backward compatible to support USB4 version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3.
The new specifications are expected to be released before this year&s USB DevDays developer events in November. In addition, the USB 3.2, DisplayPort and PCI Express (PCIe) protocols will be updated to allow the higher bandwidth to be used by tunneled USB 3.2 (which previously stopped at 20 Gbps) as well as DisplayPort 2.0 and PCIe 5.0 connections. ;) The most important features of USB4 2.0- Operation at a data rate of up to 80 Gbps, based on a new physical layer architecture, when using existing passive USB Type-C cables at 40 Gbps and newly defined active USB Type-C cables at 80 Gbps - Updates to data and display protocols to make the most of the increased available bandwidth - - USB data architecture updates now support USB 3.2 data tunneling at over 20 Gbps data rate - - Harmonization of the latest versions of DisplayPort and PCIe specifications - Backward compatibility with USB4 version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3 The upgrade to USB4 2.0 is initially aimed at developers only, and only later will the branding and marketing guidelines be updated to make the new products and cables that support the 80 Gbit/s USB recognizable, including by means of a dedicated logo. For a functioning connection with the new maximum speed, the cable as well as the host and client must meet the new USB4 2.0 standard.  more infos at bei www.usb.orgdeutsche Version dieser Seite: Neue USB4 Version 2.0 verdoppelt maximale Geschwindigkeit auf 80 Gbit/s |
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