macOS Sierra Code Confirms Thunderbolt 3 and 10Gb/s USB 3.1 Transfer Speeds in Future Macs

Code discovered within the macOS Sierra beta suggests the operating system will include support for second-generation USB 3.1 transfer speeds of up 10Gb/s, hinting at hardware upgrades that will be included in future Macs set to be released later this year.

Found in a localizable text string in macOS Sierra by 9to5Mac, the code points to support for "Super Speed Plus," another name for the faster 10Gb/s USB 3.1 Gen 2 specification. Current Macs (and OS X El Capitan) only support current-generation USB 3.1, capable of reaching transfer speeds of up to 5Gb/s, so the obvious conclusion is that Apple is planning to add USB 3.1 Gen 2 support to its upcoming Mac machines.

macbooktouchpanelmain
Apple's new Macs almost always include support for the latest USB and Thunderbolt specifications to maximize performance, so it should come as no surprise that Apple is planning the same upgrades for Macs to be released in 2016. Rumors have also previously suggested Thunderbolt 3, which includes support for 10Gb/s USB 3.1 and DisplayPort 1.2, will be introduced in Apple's most highly anticipated machine due for a refresh, the MacBook Pro, so the code found today is in line with what we'd expect to see.

There is no word on when Apple plans to debut its new MacBook Pro, and if there are other Mac updates in the works, but it is rumored to be debuting before the end of the year, perhaps at an event set to be held in October or November. The machine is said to feature a thinner, redesigned body with an OLED touch panel and Touch ID support.

Related Roundup: MacBook Pro
Buyer's Guide: MacBook Pro (Buy Now)
Related Forum: MacBook Pro

Popular Stories

maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
top stories 2025 12 20

Top Stories: iOS 26.3 Beta, Major Apple Leaks, and More

Saturday December 20, 2025 6:00 am PST by
You'd think things would be slowing down heading into the holidays, but this week saw a whirlwind of Apple leaks and rumors while Apple started its next cycle of betas following last week's release of iOS 26.2 and related updates. This week also saw the release of a new Apple Music integration with ChatGPT, so read on below for all the details on this week's biggest stories! Top Stories i...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Features Leaked in New Report, Including Under-Screen Face ID

Tuesday December 16, 2025 8:44 am PST by
Next year's iPhone 18 Pro and iPhone 18 Pro Max will be equipped with under-screen Face ID, and the front camera will be moved to the top-left corner of the screen, according to a new report from The Information's Wayne Ma and Qianer Liu. As a result of these changes, the report said the iPhone 18 Pro models will not have a pill-shaped Dynamic Island cutout at the top of the screen....
ios 18 security update

Don't Want to Upgrade to iOS 26? Here's How to Stay on iOS 18 [Update: Now Unavailable]

Friday December 19, 2025 10:37 am PST by
Since the beginning of December, Apple has been pushing iPhone users who opted to stay on iOS 18 to install iOS 26 instead. Apple started by making the iOS 18 upgrades less visible, and has now transitioned to making new iOS 18 updates unavailable on any device capable of running iOS 26. If you have an iPhone 11 or later, Apple is no longer offering new versions of iOS 18, even though there...
iOS 26

iOS 26.3 Brings AirPods-Like Pairing to Third-Party Devices in EU Under DMA

Monday December 22, 2025 3:20 pm PST by
The European Commission today praised the interoperability changes that Apple is introducing in iOS 26.3, once again crediting the Digital Markets Act (DMA) with bringing "new opportunities" to European users and developers. The Digital Markets Act requires Apple to provide third-party accessories with the same capabilities and access to device features that Apple's own products get. In iOS...
iPhone Chips

Apple Clings to Samsung as RAM Prices Soar

Monday December 22, 2025 6:17 am PST by
Apple is significantly increasing its reliance on Samsung for iPhone memory as component prices surge, according to The Korea Economic Daily. Apple is said to be expanding the share of iPhone memory it sources from Samsung due to rapidly rising memory prices. The shift is expected to result in Samsung supplying roughly 60% to 70% of the low-power DRAM used in the iPhone 17, compared with a...
iOS 26

iOS 26.2 Adds These 8 New Features to Your iPhone

Monday December 22, 2025 8:47 am PST by
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones. iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features. Liquid Glass Slider on Lock Screen A new slider in the Lock...
apple beta 26 lineup

Apple's 2026 and 2027 Product Roadmap: Foldable iPhone, iPhone 18 Pro, M5 Macs, and More

Tuesday December 16, 2025 4:42 pm PST by
There has been a whirlwind of rumors over the last few days, sourced from leaked internal software designed for the iPhone and the Mac, and news sites like The Information. Below, we have a quick recap of everything we've heard this week, which serves as a guide to Apple's product plans in 2026 and beyond. We've organized the info by likely release date, though there are some products that...

Top Rated Comments

sniffies Avatar
122 months ago
The new Macs are 1000000000000000000000x more exciting than iPhone 7.
Score: 91 Votes (Like | Disagree)
meme1255 Avatar
122 months ago
No suitable Mac --> No money from iOS Development --> Sorry Apple, no iPhone. :)
Conclusion: I don't care about iPhone, I need a work machine! And I need MacBook Pro, no HipsterBook™ "Pro" :(
Score: 49 Votes (Like | Disagree)
chrismail627 Avatar
122 months ago
Please give us new Macs in September, please give us new Macs in September....
Score: 37 Votes (Like | Disagree)
oneMadRssn Avatar
122 months ago
USB is so confusing. USB 3.1 gen 2... What's next? USB 3.1 gen 2 rev b?
Score: 36 Votes (Like | Disagree)
Cougarcat Avatar
122 months ago
USB is so confusing. USB 3.1 gen 2... What's next? USB 3.1 gen 2 rev b?
And Super Speed Plus...really? Why not "Super Speed Plus Pro Turbo Extreme +++"?
Score: 24 Votes (Like | Disagree)
keysofanxiety Avatar
122 months ago
I've never owned or even used a MacBook Pro. Are they good?
Hell yes they're good. Even the current gen 15" is an absolute beast.
Score: 21 Votes (Like | Disagree)