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Windows 11 now supports USB4 at 80Gbps, also known as USB 4 2.0 | Faster USB4 devices could start appearing in 2024 (www.techspot.com)

submitted 8 months ago by [email protected] to c/[email protected]

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Windows 11 now supports USB4 at 80Gbps, also known as USB 4 2.0 | Faster USB4 devices could start appearing in 2024::undefined

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[–] [email protected] 90 points 8 months ago* (last edited 8 months ago) (3 children)

These are all equivalent, which is dumb as fuck:

3.0 / 3.1 Gen 1 / 3.2 Gen 1
3.1 Gen 2 / 3.2 Gen 2 / 3.2 Gen 2x1

I suspect the corporations that influence USB did this specifically to confuse consumers (increase sales) when they could have told them exactly what they were getting e.g:

USB3 5Gb
USB3 10Gb
USB4 500Mb/100w
USB4 20Gb/100w
USB4 40Gb/20w
USB4 80Gb/240w

The jump from 3 to 4 could've indicated the change to USB-C ports, which should be the greatest breaking change for USB (otherwise it's no longer USB). The "/Xw" could've been used to indicate PD max watts.

This can also continue indefinitely, like "USB4 10Tb/500w", "USB5 5Pb/2kw", etc.

What I'd really like to see are regulations that require manufacturers to specify the actual speeds the specific component(s) model/batch have achieved under real world testing — both best case scenario and averages — as the theoretical limit is completely irrelevant; with wild variation between cables of the same specs.

[–] [email protected] 5 points 8 months ago

Undoubtedly the best naming scheme. The x2 suffix should not be dropped tho, because it shows that USB and the alt-DP mode can be used at the same time.

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