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USB 3.2 storage, which can operate at up to a 20Gb/s connection speed, was 10Gb/s when connected to a Thunderbolt port on an M1 Mac.
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When connected to a USB-C port, like on the front of the new Mac Studio Max desktop computer, the connection speed was 10Gb/s. What does all this mean? USB 3.1 Gen 2 storage connected to an M1 Mac via a Thunderbolt 4 port delivered 5Gb/s connection speeds. Further, when connected to an Intel Mac using a USB-C cable, the connection speed was 10Gb/s. However, when using USB-C ports, like the pair of ports on the front of the M1 Max Mac Studio, the connection speed was 10 Gb/s. When using Thunderbolt 4 ports on an M1 Mac with certified USB-C and Thunderbolt 4 cables, the connection speed was 5Gb/s. To measure transfer rates, Oakley used his app, Stibium.
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In both cases, the computers ran macOS 12.3.1 in Full Security Mode with no extensions enabled that might affect transfer speeds.
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He performed testing with an Apple Mac Studio with an M1 Max chip and a 16-inch MacBook Pro with an M1 Pro chip. Oakley's results confirm the underwhelming performance. These ports support speeds up to 40Gb/s, so why are USB 3.1 Gen 2 devices not delivering the expected speeds?
The M1-equipped MacBook Pro (14- and 16-inch models) have three Thunderbolt 4 ports. However, users have found that their M1 Macs don't meet this expectation. While Apple doesn't explicitly mention USB 3.1 Gen 2 on its list of tech specs for M1 Macs, users reasonably expect that Thunderbolt 4 ports that support USB 4 would deliver the (lesser) speeds of USB 3.1 Gen 2. USB 3.2 allows for two-lane SuperSpeed+, doubling the maximum possible speed yet again to 20Gb/s.Īpple's M1 Macs are equipped with Thunderbolt 4, which supports speeds up to 40Gb/s using Thunderbolt 4-equipped storage and supports USB 4, which is also up to 40Gb/s. USB 3.1 Gen 2 includes SuperSpeed+, which doubles the possible speeds to 10Gb/s. As outlined by Oakley, USB 3.0 supports SuperSpeed USB at 5Gb/s. When using USB 3.1 Gen 2 devices with M1 Mac Thunderbolt ports, performance doesn't meet the expected connection speeds of up to 10Gb/s, meaning real-world read/write speeds will also fall short of expectations.īefore diving into Oakley's test results, it's important to understand the USB 3.x standards. Other options in the Nomad GaN lineup include the 20W and 30W chargers that are a fraction of the size of Apple’s comparable bricks.Howard Oakley of The Eclectic Light Company has been doing some testing of the Thunderbolt ports on M1 Macs, and it seems that real-world performance doesn't match Apple's claims. The 65W AC Adapter is available and shipping now direct from Nomad priced at $69.95.
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The charger can also hit the full 45W speeds of the Galaxy S22 series while offering 20W for a second device. Over in Google’s ecosystem, Nomad’s new charger is capable of powering the Pixel 6 series at its full 23W speeds, which could certainly be handy if you want to consolidate your charging situation while traveling with a Pixel and a Chromebook. And here’s how much smaller it is than Apple’s single-port 67W power adapter.Īlong with being a perfect charger for Apple users with a MacBook, iPhone/iPad, etc., the 65W AC Adapter is of course valuable for a pair of any other USB-C devices. It’s really convenient to have a charger this compact with dual ports from a reputable company.Īs shown above, the 65W AC Adapter has an AirPods Pro case footprint (although it is thicker).
I’ve been testing this charger out and it is wonderfully small and has a great build quality. Nomad’s 65W AC Adapter features a clean gray and black finish with foldable prongs to make it as compact as possible.Įither port offers the full 65W output when charging a single device and when charging two devices, the top port delivers 45W and the bottom supplies 20W. However, Nomad’s choice to go with 65W for its compact charger is much more useful than a dual-port with 35W that Apple may or may not bring to market. The release comes shortly after we found an Apple support document detailing the company’s own 35W USB-C dual-port charger. Nomad launched its new 65W AC Adapter made possible by GaN technology today. Read on for more including hands-on details. This charger can power up a MacBook and iPad or iPhone or a Google Pixel 6 and Chromebook with a super-compact footprint the size of an AirPods Pro charging case. Nomad is out with its most powerful GaN charger yet, the dual-port 65W AC Adapter.
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