Who wants 40 Gbps transfer speeds? USB4 final specs are here

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USB4 to come in 2020

Home » News » Who wants 40 Gbps transfer speeds? USB4 final specs are here

We’re all been waiting for a new USB protocol for some time, and it seems that it’s finally here.

Back in March, the first specifications for USB4 were revealed by the USB Promoter Group. Now, they published the final specifications.

Of course, the highlight is that USB4 is based on Thunderbolt 3, which means that we can expect data transfer rates of up to 40Gbps. That’s double the speed of USB 3.2.

USB4 comes with lightning fast transfer speeds

Here are the rest of the key characteristics:

  • Two-lane operation using existing USB Type-C cables and up to 40Gbps operation over 40Gbps certified cables
  • Multiple data and display protocols that efficiently share the maximum aggregate bandwidth
  • Backward compatibility with USB 3.2, USB 2.0 and Thunderbolt 3

The backward compatibility sounds great, especially for Windows 10 users, but keep in mind that not all USB4 ports will support Thundebolt 3, as it is an Intel standard.

Another thing to keep in mind is that upcoming devices that will have USB4 will probably be more expensive and they will require new USB cables to reach the mentioned speeds.

You can expect future Windows 10 devices to get the new USB4 protocol sometime next year, but we don’t have an exact ETA. It will depend on how fast hardware manufacturers will manage to implement it.



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