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USB Type-C
Main article: USB Type-C
USB 3.x
Main article: USB 3.x
2022: Speed - 80 Gbps. New USB version announced
In early September 2022, the USB Promoter Group announced the release of USB 4 version 2.0 with some significant improvements from the original standard. The biggest feature of version 2.0 is the doubling of available bandwidth from 40 Gb/s to 80 Gb/s.
This spike makes USB 4 version 2.0 one of the highest performing connectivity standards on the market. The speed exceeds all existing USB Thunderbolt standards, including Thunderbolt 4, which is limited to 40 Gbps - as is the USB4.
The high speeds of version 2.0 are explained by the new technical architecture that has been implemented in USB4. Thanks to this, version 2.0 uses passive wires existing in the USB4 Type-C standard at 40 Gbps and adds new active USB Type-C wires at 80 Gbps to achieve a total of 80 Gbps.
The new version of USB4 also offers new improvements in device connectivity functionality. In particular, the bandwidth is increased over 20 Gbps for tunneling USB 3.2 data using alt modes such as DisplayPort mode. USB4 version 2.0 has also been updated to work with the latest versions of the DisplayPort standard and PCIe specification.
In addition, like all previous versions of USB, USB 4 version 2.0 will be backward compatible with previous versions, including the original USB4 standard, USB 3.2, USB 2.0 and Thunderbolt 3.
According to representatives of the USB Group, version 2.0 was created specifically for users using many different devices with a USB port, including docking stations, high-performance displays, etc. Since the bandwidth of version 2.0 is 80 Gbps, this is enough to satisfy the needs of the vast majority of users.
At the same time, for experienced users who regularly power their PCs and laptops from massive systems including several DisplayPort monitors, USB drives, Ethernet networks, etc., an indicator of 80 Gbps will ensure that none of these devices and the host system will be limited in bandwidth.[1]
Notes
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