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From: J Burns <burns@nospam.com>
Newsgroups: comp.sys.mac.hardware.misc,comp.sys.mac.misc,comp.sys.mac.portables,comp.sys.mac.system,comp.sys.mac.systems
Subject: Re: Why only USB 2, and not 3, for Apple USB-C Digital AV Multiport
 Adapter (A2119) as shown in macOS Ventura v13.6.6?
Date: Wed, 24 Apr 2024 17:53:32 -0400
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On 4/5/24 4:11 PM, Ant wrote:
> Hello,
> 
> https://gcdnb.pbrd.co/images/iHpGVd7n8guh.gif for a screen shot/capture.
> Why only USB 2, and not 3, for Apple USB-C Digital AV Multiport Adapter
> (A2119) as shown in macOS Ventura v13.6.6's system information in a 13"
> Intel 2020 MBP?
> 
> Thank you for reading and hopefully answering soon. :)

I don't know, but I can guess. It's supposed to support 1920 x 1080 at 
60 Hz. Even if it were only 8-bit color, that would be 1 Gb.

I think it told your computer it was USB 2.0 because it didn't see a 
demand demand 2.0 couldn't handle. That would let the computer use its 
resources more efficiently.