up to 80 Gbps to double the speed of Thunderbolt 4

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The USB Implementers Forum, a consortium of companies including Apple, Intel, Microsoft, HP and IBM, has announced the USB4 specification version 2.0 (USB 4.0). The update will come with a major improvement: it will be twice as fast as the previous version, which means that it is designed to reach transfer peaks of 80 Gbps.

The key feature of this update is speed. To achieve 80 Gbps, the USB-IF ensures that a “new physical layer architectureAs complex as this may be, the new specification is expected to support the use of existing 40Gbps passive USB-C cables, meaning those without integrated circuitry.

A new version of USB4 on the way

But with the new specification will also come new cables designed specifically for it. Thus, version 2.0 of USB4 will also work with new active 80GB USB-C cables which will have 80Gbps ICs on both ends (which translates to slightly larger connectors), though these will be available later.

The jump in bandwidth of USB4 version 2.0, which is faster than Thunderbolt 4, which reaches a maximum transfer speed of 40 Gbps, will open the door to use peripherals with higher performance. For example, more powerful external graphics cards and high-resolution displays with high refresh ratesa delight for gamers.

Also, the new version may bring improvements for those who use their laptops as desktop workstations. Through a USB-C port, they will be able to use a station that allows them to connect several high-resolution monitors and even increase the number of high-speed ports for other peripherals.

From the USB-IF they say that they will update the data transfer and display protocols to take full advantage of the new specification. They also point out that compatibility with USB4 version 1.0, USB 3.2, USB 2.0 and Thunderbolt 3 will not be lost, although it is certainly not possible to take full advantage of the update.

It should be noted that the new specification has not yet been released. the consortium will continue working to get it ready for November this year. It is expected that this month all the technical details will be published and manufacturers will have a clear reference framework to certify their devices, and consumers also to buy them.

Basic guide to not go crazy with the USB standard: formats, colors, speeds and specifications

Now, if we talk about clarity, there is an issue that is still pending resolution, and it has to do with the names used by the USB-IF. USB4 version 2.0 could have been called, for example, USB5, but those responsible for establishing these guidelines have decided to follow the path of confusion, which became more established with the arrival of USB 3.0.

Pictures | Tony Webster (Flickr)

In Xataka | Thunderbolt 5 in sight: up to 80 Gbps for a connection that will double the speed of TB4

The USB Implementers Forum, a consortium of companies including Apple, Intel, Microsoft, HP and IBM, has announced the USB4 specification…

The USB Implementers Forum, a consortium of companies including Apple, Intel, Microsoft, HP and IBM, has announced the USB4 specification…

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