USB Promoter Group Announces USB4 Version 2.0 with up to 80Gbps transfer rate

silversurfer

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USB Promoter Group has finally announced (pdf) USB4 Version 2.0. Although the naming hints that it is just a second-gen update to USB4, it supports double the transfer speeds of its predecessor, with up to 80Gbps.

The new standard will be backwards compatible with USB4 version 1.0, SB 3.2, USB 2.0, and Thunderbolt 3, but not with USB 1.0 and Thunderbolt 4. The USB4 2.0 specifications will be updated for USB Type-C and USB Power Delivery (USB PD) as well.

Due to licensing issues, USB and Thunderbolt have been updating parallely. Intel laptops have a Thunderbolt port, while AMD Ryzen ones have the USB4 branding. However, even after Intel updated to Thunderbolt 4, the transfer speeds were roughly equivalent to that of Thunderbolt 3 and USB4 1.0. With the second version, Ryzen-based laptops might have an edge, at least until Intel announces Thunderbolt 5.

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

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