Apple May Sell Optional iPhone 15 Pro USB-C Thunderbolt Cable

Apple may offer a USB-C data transfer accessory cable for iPhone 15 Pro models that is capable of Thunderbolt or USB4 speeds of up to 40Gbps. That is the latest claim made by Kosutami, who posted details of the cable on Twitter (now X).

TB4 iphone 15 pro cable

Leaked 0.8m Thunderbolt USB-C cable (Image: Majin Bu)

According to the leaker, the length of the cable is 0.8 meters, which is shorter than Apple's existing Thunderbolt 4 Pro cable (1.8m), and it is said to support charging up to 150W. Apple will allegedly sell the cable separately.

Given the expected switch to USB-C across all iPhone 15 models, there has been a lot of conjecture about which port standard Apple will use in its premium iPhone 15 Pro and iPhone 15 Pro Max devices to potentially differentiate them further from the more affordable iPhone 15 and iPhone 15 Plus models.

According to Apple analyst Ming-Chi Kuo, the iPhone 15 Pro models will support "at least" USB 3.2 or Thunderbolt 3. However, the leaked USB4 cable is based on the Thunderbolt 4 protocol, allowing it to offer equivalent speeds of 40Gbps, or twice the preceding USB 3.2 Gen 2 standard.

As for the 150W charging claim (not 120W – a correction made by Kosutami in a subsequent tweet) this would make the cable capable of faster power delivery than Apple's existing Thunderbolt 4 Pro cable (100W), however that does not necessarily mean iPhone 15 Pro models will be capable of charging at this speed.


Earlier this year, Apple analyst Ming-Chi Kuo said that the ‌iPhone 15‌ models would support faster charging speeds due to the transition to USB-C, while one rumor has claimed that at least some iPhone 15 models may support charging speeds up to 35W. Current iPhone 14 models can charge at a maximum of around 27W, with the Pro models able to charge a bit faster.


Speculation therefore remains rife about the USB-C port capabilities of the iPhone 15 lineup, and nothing is certain beyond the switch from Lightning. Rumors suggest the cables supplied in iPhone 15 boxes are limited to USB 2.0 data transfer speeds at a rate of 480 MBps, which is the same as Lightning.

In contrast, the iPhone 15 Pro models are expected to be supplied with cables capable of USB 3.2 or Thunderbolt 3 transfer speeds, as per Kuo's original claim. Images from ChargerLab suggest that some iPhone 15 models will include a Thunderbolt/USB 4 retimer chip, seemingly confirming the rumor of higher-speed data transfer for the Pro models.

Each iPhone 15 will include a braided USB-C charging cable in the box that is thicker (i.e. more durable) and 50% longer than the Lightning cable that comes with current iPhone models, according to reports. The cables are also rumored to be color-matched to possible new iPhone colors, coming in at least black, white, yellow, blue, and orange.

Apple will announce the new iPhone 15 lineup at an event that is expected to be held on September 12.

Popular Stories

iphone 16 pro colors 1

Is Now the Time to Upgrade Apple Devices Before Tariffs Lead to Price Increases?

Friday April 4, 2025 3:41 pm PDT by
If you have an older Apple device that you've been considering upgrading, you're probably wondering how the newly announced tariffs might impact prices going forward, and whether it's worth buying now before there's a price hike. Given analyst and economist responses to the tariffs, market panic, and Trump's stance on the current financial chaos, the answer is that making a purchase...
2024 iPhone Boxes Feature

iPhones Could Cost Up to $2,300 in the U.S. Due to Tariffs, Analyst Says

Friday April 4, 2025 9:30 am PDT by
U.S. President Donald Trump on Wednesday announced that steep tariffs will be applied to imports from many countries, starting April 9. The tariffs could have a significant impact on Apple, as the company assembles the majority of iPhones in China, and products imported to the U.S. from China will be subject to a 54% tariff. iPhone prices could increase by up to 43% in the U.S. due to the...
iOS 19 Mock WWDC25 Feature

iOS 19 Expected to Run on These iPhones

Monday March 31, 2025 5:28 pm PDT by
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past. The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

iPhone 17 Pro's New Rear Camera Bar 'Same Color As Rest of Device'

Monday April 7, 2025 2:09 am PDT by
Apple's upcoming iPhone 17 Pro models will feature a redesigned rear camera panel that spans the width of the device, but it will be the same color as the iPhone itself, rather than being part of a two-tone design. That's according to Bloomberg's Mark Gurman. Writing in his latest Power On newsletter, the reporter says the iPhone 17 Pro won't have a two-toned back, as some renders have...
iphone x front back

Apple Planning 'Bold' New 20th Anniversary Design for 2027 iPhone Pro

Monday April 7, 2025 2:46 am PDT by
Apple is preparing a "major shake-up" for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. iPhone X released in 2017 for 10th anniversary Writing in his latest Power On newsletter, Gurman says that Apple plans to launch a foldable iPhone alongside a "bold" new iPhone Pro model that makes more extensive use of glass. Could this mean Apple plans to realize former...
Alleged iOS 19 Icons Front Page Tech

iOS 19 Leak Reveals Alleged New Design With Rounder App Icons, Floating Tab Bar, and More

Monday April 7, 2025 3:13 pm PDT by
YouTube channel Front Page Tech is back today with another video that provides a closer look at iOS 19's alleged design changes. The video contains re-created renders of iOS 19, which are allegedly based on real footage of the software update, provided by sources within Apple. Overall, iOS 19 is expected to have a more glass-like, visionOS-inspired design, with added translucency for user...
top stories 2025 04 05

Top Stories: iOS 18.4 Released, New AirPods Max Features, and More

Saturday April 5, 2025 6:00 am PDT by
We're just two months away from WWDC where we'll get our first glimpses of iOS 19 and related updates, but this week saw the public release of iOS 18.4 with a number of changes and improvements including some audio improvements for the USB-C AirPods Max. This week also saw the first beta of iOS 18.5, a new rumor about iOS 19 compatibility, and Apple's work on haptic buttons that have yet to...
iOS 18

12 New Things Your iPhone Can Do in iOS 18.4

Tuesday April 1, 2025 4:06 am PDT by
Apple has released iOS 18.4, bringing further refinements to Apple Intelligence features, a neat new capability to iPhone 15 Pro devices, new emoji, and more. While not quite as packed with new features as Apple's preceding iOS 18 point releases, iOS 18.4 still introduces enhancements that aim to make your iPhone smarter and more intuitive. Below, we've listed 12 new things your ‌iPhone‌ ...

Top Rated Comments

eddjedi Avatar
21 months ago

Thanks EU for this absolutely dumb mess you made.
Standardising ports and cables is not dumb, my phone is the only reason I still need to carry a Lightning cable, everything else already uses USB-C.

However, restricting USB-C to USB 2.0 speeds unless you buy a $130 cable, is the very definition of dumb (and greed.)
Score: 61 Votes (Like | Disagree)
timshundo Avatar
21 months ago

Surely the WHOLE POINT of implementing USB-C is to NOT need proprietry cables any more? Why can't we use a high quality third party USB-C cable to transfer data at resaonable speeds? I imagine the EU, who pushed for USB-C in the first place, will see this as yet more gatekeeping
Thunderbolt ≠ USB. They’re two separate protocols and have different requirements in the cable to function, but just the same connector, USB-C.

Having one cable rule them all was never a real possibility. There are 19 wires required inside that one cable for a full USB4 functionality. You think all manufacturers wanna put that much in there with the proper shielding and metals (and a separate chip for Thunderbolt) for safely transferring 40Gbps with room for zero error?

The solution to your problem to your problem is to buy the best, most recent, top of the line cable for all of your needs, aka one that supports Thunderbolt and USB4. But in that case you’re gonna be spending like ~$100 per cable, rather than the $5 you can find on Amazon.

That’s what’s happening here. Apple is not gonna bundle a Thunderbolt cable with an iPhone. They want to keep the margins they got when they removed the charger.

The other solution is for either Thunderbolt or USB4 to win the battle and reign supreme, which is a lot easier now than back in the day since they’re nearing feature parity now. But even then there’s no guarantee USB5 or USB6 would be on the horizon with even more expensive requirements.

Not to mention Power Delivery is its own specification aside from USB-C and its cables.

When articles like this speculate that the non-pro iPhones will use USB-C with USB 2.0 data transfer speeds, that just means they don’t want or expect people to be sending data through a cable anymore at all. They want as few wires in the cable as possible to save money. I don’t even know why data transfer through from a phone cable is even still a part of anyone’s process anymore. WiFi/airdrop are all good and fast enough at this point.

Anyway, USB-C solving all our port issues is an illusion. You’re always gonna have to pay attention to what kind of cable you’re buying and what most recent standard it supports. Manufacturers be cheap. 40Gbps+ speeds (USB 3.0 and the first USB-C cables started out at 5Gbps, remember) require more and better quality materials.

Sorry to unload this all out on you, I actually really just needed to write this out for myself lol. It’s confusing stuff.
Score: 41 Votes (Like | Disagree)
M1Chip Avatar
21 months ago
Yeahhh!!!.. Can't wait to buy $129 cable....




Attachment Image
Score: 40 Votes (Like | Disagree)
ApplesAreSweet&Sour Avatar
21 months ago

Thanks EU for this absolutely dumb mess you made.
Blaming everyone for the mess except the corporation who actually incited the E.U. to create the new regulations, which is also the corporation that creates the mess and gets to profit greatly from it.

?
Score: 33 Votes (Like | Disagree)
klasma Avatar
21 months ago

Surely the WHOLE POINT of implementing USB-C is to NOT need proprietry cables any more? Why can't we use a high quality third party USB-C cable to transfer data at reasonable speeds?
There’s nothing in the article that implies the cables will be proprietary. But different cables support different wattages and different transfer speeds. You need to pick the right cable to fit the intended application. There isn’t just a single type of USB-C cable.
Score: 26 Votes (Like | Disagree)
pepemake Avatar
21 months ago

Surely the WHOLE POINT of implementing USB-C is to NOT need proprietry cables any more? Why can't we use a high quality third party USB-C cable to transfer data at reasonable speeds? I imagine the EU, who pushed for USB-C in the first place, will see this as yet more gatekeeping
How is this gatekeeping? The cable is literally just a regular TB4 / USB4 40Gbps cable, nothing proprietary.
Score: 25 Votes (Like | Disagree)