While USB-C is generally well-regarded, a notable issue arises when assessing the ports on computers: there’s no standardized method to identify their functionalities. Some ports may allow for video output (via Alt-Mode), while others may be intended for charging, often leaving users uncertain about their uses. In response to this concern, Microsoft aims to implement a mandatory USB-C feature set for all mobile devices that qualify under its Windows Hardware Compatibility Program (WHCP), as mentioned in a recent blog post.
This move comes after years of rebranding efforts by the USB Implementers Forum, which has revised USB specifications, with the latest version focusing on bandwidth (measured in Gbps) as a key identifier, thus eliminating the need for names like ‘USB PlaidSpeed’. In its commitment to a more user-friendly design, Microsoft’s blog details a fundamental set of features that USB-C ports should offer, as shown in the accompanying table.
Importantly, one of the stipulations is that support for PC charging must be included, alongside the ability to connect at least one external display. However, there are some caveats, as this seems to apply exclusively to laptops, and no detailed charging guidelines (like USB-PD voltages or wattage) have been specified, leaving the real implications of these requirements somewhat ambiguous.
Despite this, it is clear that in its effort to make USB-C a universal connector for nearly all devices, there will inevitably be cases where user expectations fall short.
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