![]() USB 3.2 adds two-lane SuperSpeed+ at 10 and 20 Gb/s.Ĭurrently, Apple makes no claims that any ports on its M1 models support USB 3.2, only the more widespread USB 3.1 Gen 2 standard.USB 3.1 Gen 2 adds SuperSpeed+ at 10 Gb/s.USB 3.0 onwards supports SuperSpeed USB at 5 Gb/s. ![]() For the purposes of this article, I’ll gloss over a lot of detail and summarise the relevant features as: Unfortunately, standards and terminology for USB 3.x are confusing. This article examines why performance experienced by users falls short of Apple’s claim. However, many users have reported performance which doesn’t reach 10 Gb/s for directly connected external disks. Apple claims that all its new models using M1 series chips come with Thunderbolt ports which support “USB 3.1 Gen 2 (up to 10Gb/s)”.
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