USB4 is built on a Thunderbolt 3 backbone, so many of its capabilities are the same. Whereas USB 3.0's best version hit a ceiling of 20Gbps, USB4 is capable of 40Gbps, just like Thunderbolt 3 and 4.

Thunderbolt 4 and (most) USB4 support the latest USB PD 3.1 standard that allows for maximum charging of 240W compared to USB PD 3.0 and Thunderbolt 3’s 100W.

Thunderbolt 3 USB4; Universal USB-C port – Required speed for cables up to 2 meters in length: 120 Gbps (1-way) 80 Gbps (bi-directional) 40 Gbps – 20 Gbps: Accessories with up to 4 Thunderbolt ...

USB4 Interoperability with Thunderbolt™ 3 (TBT3) Systems September 29, 2022 One of the key goals for USB4 is to retain compatibility with the existing ecosystem of USB3.2, USB 2.0 and Thunderbolt ...

Adata advertises sequential read speeds of up to 3.8GB/s and write speeds reaching 3.7GB/s with ... the SE920 is backward compatible with USB 3.2 and 2.0, but its USB-C USB4 connection also ...

ADATA's USB4 SE920 external SSD, which supports Thunderbolt 3 and 4 and is backward compatible with USB 3.2 and USB 2.0, can reach up to 3,800 MB/s per second in full USB4 mode.

USB4 Version 2.0 was announced ahead of USB DevDays scheduled for November 2022. The new spec version brings some exciting changes to USB-C connectivity.

Once USB4 Version 2.0 products come out, you'll be able to hit 80Gbps with USB-C passive cables that currently operate at 40Gbps, but you'll have to buy a new cable if you want a longer, active ...

The new specification is also backward compatible with previous USB versions, including USB4 Version 1.0, USB 3.2, USB 2.0, and even Thunderbolt 3. 12 comments 264 likes and shares.

Thunderbolt/USB4 debugging tools. Contribute to intel/tbtools development by creating an account on GitHub. Skip to content. Navigation Menu Toggle navigation. ... # tbdump -r 0 -N 1 -a 3 PORT_CS_18 ...