OWC has announced that its upcoming Thunderbolt Hub will be compatible with all Apple M1 and Intel Macs equipped with Thunderbolt 3 ports and running macOS Big Sur, offering users the ability to expand the number of available Thunderbolt ports.
The OWC Thunderbolt Hub connects to a host computer over a Thunderbolt 3/4 port and provides three additional Thunderbolt ports (which are also compatible with USB-C) and one USB-A port. Each of the three downstream Thunderbolt ports can host its own daisy chain of peripherals and support transport speeds of up to 40Gb/s, subject to the overall limit of 40 Gb/s for the connection from the host computer.
The upstream Thunderbolt port can provide up to 60 watts of power to the host computer, which would be enough for a MacBook Air or a 13-inch MacBook Pro, but wouldn't be able to fully support a 16-inch MacBook Pro. The downstream ports can provide up to 15 watts for bus-powered Thunderbolt peripherals.
The OWC Thunderbolt Hub is priced at $149.99 and is available for pre-order now ahead of an early December launch.
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors.
Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report.
iPhone 17 Air mockup based on rumored design
The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman.
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This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too.
2025 Apple Watch Ultra 3
Apple didn't update the...
Wednesday April 30, 2025 3:59 am PDT by Tim Hardwick
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years.
iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack)
At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
Wednesday April 23, 2025 8:31 am PDT by Joe Rossignol
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Tuesday April 29, 2025 3:36 am PDT by Tim Hardwick
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station.
The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM.
...
Tuesday April 29, 2025 1:30 am PDT by Tim Hardwick
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
I'd consider myself a pro user, and I've been using a MacBook Air M1 with 8-core GPU and 16GB of RAM and couldn't be happier. A product like this that can add more Thunderbolt ports is the cherry on top.
The description references Thunderbolt 3 and the images are labeled with Thunderbolt 4.
Because electrically there is no difference between TB3 and TB4. TB4 is more of a certification, it requires full TB3 feature set in the host, along with secure memory access which wasn't present in older host controllers. They added hub support, but apparently there wasn't anything preventing it before in the protocol.
TB4 spec says can support 2 4K displays. So new Apple Silicon M1s must be TB3. https://images.anandtech.com/doci/15902/Intel%20Thunderbolt%204%20Announcement%20Press%20Deck_070720-page-013.jpg
Thunderbolt v4 is a bit skewed toward Intel. Not too surprising. Their gen10 and gen11 U series processors with integrated TB controllers have a four DisplayPort v1.4 stream attached so meet the spec. ( also all get a clean switchedd x4 PCI-e v3 feed also) . But it is also more uniform. If it is a TBv4 system then it doesn't matter which port you choose it will always have a video signal present. ( so you don't have pull out your USB4 symbol decoder ring to find out which feature is on which port on which system. ). TBv4 is largely about not having to worry what part of the optional parts of the USB4 specification the system implementer skipped.
There was a recent posting the seemed to indicate that Apple's integrated TB controller has the baseline ability but just isn't fed the four streams from the internal iGPU. So the M1 comes up short probably based on having a limited iGPU. Insert a more capable iGPU into the Apple Silicon die and then Apple could get the TBv4 label ( if they bother to go through certification process ) .
USB4 is largely based on Thunderbolt, however, there are material differences in regards to implementation (signaling rates, power delivery, etc.). Thunderbolt 3 interoperability is optional, not required, for USB4 hosts and devices.
Thunderbolt 4 is USB4 with mandatory Thunderbolt 3 interoperability along with a bunch of other minimum requirements to achieve certification. The Thunderbolt/USB4 ports on the M1 Macs are Thunderbolt 4 as far as signaling and power delivery are concerned. They do not meet the minimum requirement for video output because the M1 can only provide the Thunderbolt/USB4 host router with a single display stream. So aside from not supporting at least 2 displays, the USB Type-C ports on M1 Macs are otherwise Thunderbolt 4 compliant. This is not a deficiency in Apple's implementation of Thunderbolt/USB4, but rather in the display engine for the M1's GPU. Either port can drive a display, but not both at the same time.
The reason why Thunderbolt has historically been strictly a daisy-chain topology is that Intel never produced a Thunderbolt controller with more than 2 ports. You can't build a bigger switch/hub with only 2-port switches. That all changed when Intel recently released the 4-port JHL8440 "Goshen Ridge" ('https://ark.intel.com/content/www/us/en/ark/products/189982/intel-jhl8440-thunderbolt-4-controller.html') controller. OWC's device appears to be first to market and very reasonably priced, but I'm sure more vendors will soon follow.
