Possible Upcoming Mac Pro Reference Discovered in OS X El Capitan

It's been two years since Apple launched its radically redesigned Mac Pro, but the professional-level workstation has not seen any updates since that time despite the availability of upgraded versions of many of the components used in the machine. We may be getting closer to an update, however, as Pike's Universum has discovered a reference to a new Mac code name of "AAPLJ951" within OS X El Capitan.

The identity of the Mac corresponding to that code name is not explicitly revealed in OS X, but Pike points to the similar AAPLJ90 code name for the current Mac Pro as a reason to believe this new machine is a Mac Pro.

aaplj951

The data is identical to that of the late 2015 (iMac17,1 in the same file) so it may as well be a remnant of the new iMac, but the strange thing is that the XHCI data for the late 2015 iMac is also there, which is why I believe that this is not/was not added for the/a new iMac but another Mac.

And like I said earlier in the comments, there are too many USB 3 ports defined to fit on a MacBook (Pro) and Mac Mini. This and the fact that there is already support for newer graphics chips [baked] into El Capitan… is why I think that it was added for a new Mac Pro. I personally sure hope so.

Looking toward possible specs for the next Mac Pro, it seems likely it will run on Xeon-branded Broadwell EP chips and include significantly faster graphics based on AMD's Fury platform, along with faster memory and storage and perhaps Thunderbolt 3 connectivity involving a partial shift to USB-C connectivity.

Related Roundup: Mac Pro
Buyer's Guide: Mac Pro (Neutral)
Related Forum: Mac Pro

Popular Stories

iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
apple intelligence black

Report: Apple's AI Strategy Could Finally Pay Off in 2026

Tuesday December 30, 2025 9:01 am PST by
Apple's restrained artificial intelligence strategy may pay off in 2026 amid the arrival of a revamped Siri and concerns around the AI market "bubble" bursting, The Information argues. The speculative report notes that Apple has taken a restrained approach with AI innovations compared with peers such as OpenAI, Google, and Meta, which are investing hundreds of billions of dollars in data...
apple fitness 2026 1

Apple Teases 'Something Big' Coming Soon to Apple Fitness+

Tuesday December 30, 2025 2:11 pm PST by
The Apple Fitness+ Instagram account today teased that the service has "big plans" for 2026. In a video, several Apple Fitness+ trainers are shown holding up newspapers with headlines related to Apple Fitness+. What's Apple Fitness+ Planning for the New Year? Something Big is Coming to Apple Fitness+ The Countdown Begins. Apple Fitness+ 2026 is Almost Here 2026 Plans Still Under ...
iphone 17 pro dark blue 1

iPhone 17 Pro and Pro Max Users Report Static Speaker Noise While Charging

Tuesday December 30, 2025 10:39 am PST by
iPhone 17 Pro and Pro Max owners are having trouble with the speakers of their devices, and have complained about a static or hissing noise that occurs when the iPhone is charging. There are multiple discussions about the issue on Reddit, the MacRumors forums, and Apple's Support Community, where affected users say there is a noticeable static noise "like an old radio." Some people report...
maxresdefault

Hands-On With a Rough iPhone Fold Mockup

Monday December 29, 2025 10:55 am PST by
Apple is rumored to be introducing a foldable iPhone in September 2026, and since it will bring the biggest form factor change since the iPhone was introduced in 2007, curiosity about the design is high. A 3D designer created an iPhone Fold design based on rumors, and we printed it out to see how it compares to Apple's current iPhones. Subscribe to the MacRumors YouTube channel for more ...
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...
Mac Pro Feature Blue

What's Happening With the Mac Pro?

Wednesday December 31, 2025 9:59 am PST by
Apple hasn't updated the Mac Pro since 2023, and according to recent rumors, there's no update coming in the near future. In fact, Apple might be finished with the Mac Pro. Bloomberg recently said that the Mac Pro is "on the back burner" and has been "largely written off" by Apple. Apple apparently views the more compact Mac Studio as the ideal high-end pro-level desktop, and it has almost...
macbook air march 2020

Apple Says Final Intel MacBook Air and Apple Watch Series 5 Now 'Vintage'

Wednesday December 31, 2025 8:39 am PST by
Apple today added the final 13-inch MacBook Air powered by Intel processors, the Apple Watch Series 5, and additional products to its vintage products list. The iPhone 11 Pro was also added to the list after the iPhone 11 Pro Max was added back in September. The full list of products added to Apple's vintage and obsolete list today: MacBook Air (Retina, 13-inch, 2020) iPhone 8 Plus 128GB ...

Top Rated Comments

Frign Avatar
133 months ago
('http://frign.de/static/tnmp/the_new_mac_pro_1440p.png')
Score: 55 Votes (Like | Disagree)
upthetoffees Avatar
133 months ago
i am more than 100% sure in next few month we will see a revolution in macs, they have been so similar far last few years now its 10th anniversary of mbp and probably we will see amazing new mac pro with reasonable price too
I don't understand why they don't do it. Where is the non mini non pro and non imac option? Where is the pc equivalent that would go into offices and homes? I am not going to buy another imac, not going to buy the mac pro, hell no and the mini is underpowered. The whole mac strategy in 2015 is complete BS. So much so that I started making a pc for my audio stuff and it's just so frustrating. Apple gimps everything by controlling the levels of what is offered for a price, then the upgrade costs x + apple tax. I really hope there is more of a backlash soon, I'm getting sick of this. Can't be the only one.

Lots of people have money for you apple, they love the OS, don't strangle the **** out of your customers.
Score: 17 Votes (Like | Disagree)
funtimeben Avatar
133 months ago
I just really hope they drop the trashcan design for something with a little more expandability. Would love a new Mac, but refuse to buy something I need to plug external hard drives all over to expand.
Score: 13 Votes (Like | Disagree)
bkkcanuck8 Avatar
133 months ago
I just really hope they drop the trashcan design for something with a little more expandability. Would love a new Mac, but refuse to buy something I need to plug external hard drives all over to expand.
The Mac Pro that you keep on pining over is NOT that expandable -- in fact the Mac Pro 2013 is much more expandable. I have a Mac Pro 2008, two graphics cards (5770).... which take up all but the lowest speed PCIe slot (a SATA card in there). All 4 hard drive bays full..... no more expansion possible. With the Mac Pro 2013 it has the two graphics cards in there and up to 36 Thunderbolt devices.... so add a Thunderbolt 4 drive bay (and I have 35 left). Or add a 24 bay one and still have 35 left.....
Score: 13 Votes (Like | Disagree)
bax2003 Avatar
133 months ago
The Mac Pro that you keep on pining over is NOT that expandable -- in fact the Mac Pro 2013 is much more expandable. I have a Mac Pro 2008, two graphics cards (5770).... which take up all but the lowest speed PCIe slot (a SATA card in there). All 4 hard drive bays full..... no more expansion possible. With the Mac Pro 2013 it has the two graphics cards in there and up to 36 Thunderbolt devices.... so add a Thunderbolt 4 drive bay (and I have 35 left). Or add a 24 bay one and still have 35 left.....
Or, instead of all that upgrades for MP 2013, for the same money, you buy a house.
Score: 12 Votes (Like | Disagree)
ActionableMango Avatar
133 months ago
The Mac Pro that you keep on pining over is NOT that expandable -- in fact the Mac Pro 2013 is much more expandable.
That's an awfully misleading statement. The new MP is "more expandable" in your very cherry-picked scenario of Thunderbolt-attached devices. In almost every other way it is less expandable. Fewer CPU sockets, fewer memory sockets, no optical bays, no HDD bays, no PCIe slots, and extremely restrictive GPU choices. And if the new MP had simply kept the same physical design as the classic MP, it would have had all of those advantages plus Thunderbolt attached devices.

There are several advantages to the new MP design. It is smaller in size, uses less power, makes less noise, and has fewer fans that can fail.

But "much more expandable"? No, not without some narrowly defined view of expansion, and even that falls apart compared to what a 2013 MP could have been if they hadn't changed the basic physical design.
Score: 11 Votes (Like | Disagree)