Thunderbolt 3 and USB Converge With New 40 Gbps USB4 Specification

The USB Promoter Group standards body today announced the pending release of a new USB4 specification.

macbookairusbc
USB4 converges the Thunderbolt and USB protocols as part of Intel's goal to make Thunderbolt available on a royalty-free basis, which should result in wider and cheaper availability of Thunderbolt accessories like docks and eGPUs.

As USB4 is based on Thunderbolt 3, it offers data transfer speeds up to 40 Gbps, which is twice as fast as the bandwidth of the latest USB 3.2 Gen 2x2 specification. USB4's underlying Thunderbolt 3 protocol also means the specification supports up to two 4K displays or one 5K display over a single cable.

The simplest way to view USB4 is as Thunderbolt 3, but royalty free for manufacturers. Intel will continue to offer Thunderbolt 3 on a standalone basis with a few advantages over USB4, including more support with reference designs and technical issues for manufacturers, according to The Verge.

USB4 will use the USB-C connector design and will be backwards compatible with USB 3.2 and USB 2.0 specifications.

The USB4 specification is on track to be published around the middle of 2019. Over 50 companies are actively participating in the final stages of review of the draft specification, which should include Apple, Intel, and Microsoft, but it might take a few years until the first USB4 devices are released.

Top Rated Comments

haruhiko Avatar
42 months ago
USB4.0 Gen 1 = USB 3.0 = USB 3.1 Gen 1
USB4.0 Gen 2 = USB 3.1 Gen 2
USB4.0 Gen 3 = USB 3.2 20Gbps
USB4.0 Gen 4 HyperSpeed 40 = Thunderbolt 3
Score: 40 Votes (Like | Disagree)
EvilEvil Avatar
42 months ago
Watch Apple will get confused and come out with another cable standard again.
Score: 33 Votes (Like | Disagree)
MattG Avatar
42 months ago


Attachment Image
Score: 22 Votes (Like | Disagree)
Blackstick Avatar
42 months ago
I find it hard to believe that apple will continue down this road for much longer.
They'll drop all the ports entirely first...
Score: 15 Votes (Like | Disagree)
AngerDanger Avatar
42 months ago
Seriously I said this in 2016 and 2017. ( I need to big that up ) And said we need USB 4 instead of all the mess we have with USB 3.2

Finally they are doing something about it!.

Edit:

This means USB-C will now be the only option. No more USB 3.0 / USB 3.1 ( Or as they are now called USB 3.2 Gen1 / Get 2 ) with Type A Connector. Every USB 4 will be USB-C.

And since USB 4 will mandate the 40Gbps and Thunderbolt 3, it means there is certain quality assurance to USB 4 cable.

Finally, there will be a possibility that iPhone will switch to USB 4, may be just USB 4 with 5Gbps Speed. And I am happy to see this change. ( That is assuming they don't mess up the USB 4 Spec )
Can’t believe they ignored you for 2–3 years! Who do they think they are?! :eek:
Score: 13 Votes (Like | Disagree)
citysnaps Avatar
42 months ago
No worries. Many on this forum just want good ol' USB-A on thick laptops.
Score: 12 Votes (Like | Disagree)

Popular Stories

iPhone 13 Always On Feature

iPhone 14 Pro Screen Refresh Rate Upgrade Could Allow for Always-On Display

Tuesday May 24, 2022 7:23 am PDT by
Last year's iPhone 13 Pro models were the first of Apple's smartphones to come with 120Hz ProMotion displays, and while the two iPhone 14 Pro models will continue to feature the technology, their screens could well boast expanded refresh rate variability this time round. To bring ProMotion displays to the ‌iPhone 13 Pro models‌, Apple adopted LTPO panel technology with variable refresh...
iPhone 14 Pro Purple Front and Back MacRumors Exclusive

iPhone 14 Pro Renders Highlight Multiple Design Changes

Wednesday May 25, 2022 8:56 am PDT by
Leaker Jon Prosser today shared ostensibly accurate renders of the iPhone 14 Pro, providing the most accurate look yet at what the device could look like when it launches later this year. In the latest video on YouTube channel Front Page Tech, Prosser revealed renders of the iPhone 14 Pro made by Apple concept graphic designer Ian Zelbo, highlighting a range of specific design changes...
iPhone 14 Purple Lineup Feature

Will the iPhone 14 Be a Disappointment?

Saturday May 21, 2022 9:00 am PDT by
With around four months to go before Apple is expected to unveil the iPhone 14 lineup, the overwhelming majority of rumors related to the new devices so far have focused on the iPhone 14 Pro, rather than the standard iPhone 14 – leading to questions about how different the iPhone 14 will actually be from its predecessor, the iPhone 13. The iPhone 14 Pro and iPhone 14 Pro Max are expected...
iPhone 13 Face ID

'High-End' iPhone 14 Front-Facing Camera to Cost Apple Three Times More

Monday May 23, 2022 7:05 am PDT by
The iPhone 14 will feature a more expensive "high-end" front-facing camera with autofocus, partly made in South Korea for the first time, ET News reports. Apple reportedly ousted a Chinese candidate to choose LG Innotek, a South Korean company, to supply the iPhone 14's front-facing camera alongside Japan's Sharp. The company is said to have originally planned to switch to LG for the iPhone...
apple wwdc 2022

Apple Shares WWDC 2022 Schedule, Keynote to Take Place June 6 at 10:00 a.m PT

Tuesday May 24, 2022 9:06 am PDT by
Apple today confirmed that the keynote event for the Worldwide Developers Conference will begin at 10:00 a.m. Pacific Time on June 6, the first day of WWDC. The keynote will be an online-only event, though a select number of developers have been invited to the Apple Park campus for a viewing event. In addition to confirming the keynote date and time, Apple has shared the full WWDC 2022...
2022 Apple Watch Pride Edition Bands

Apple Announces 2022 Pride Edition Watch Bands and Watch Face

Tuesday May 24, 2022 6:24 am PDT by
Apple today announced new Pride bands for the Apple Watch, with new Pride Edition Sport Loop and Pride Edition Nike Sport Loop options available. The new Pride Edition bands are available to order today for $49 on Apple.com and in the Apple Store app, and will be available at Apple Store locations starting May 26. The Pride Edition Nike Sport Loop is also coming soon to Nike.com. This...