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Joined 1 year ago
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Cake day: July 5th, 2023

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  • Adapting from usb- a to b is not adapting anything other than the physical connector.

    Neither is the DisplayPort cables I’m talking about, where one end is just USB-C, but the signal actually transmitted through the USB-C connector and the cable itself is the HBR/UHBR transmission mode of any other DisplayPort cable (whatever the combination of the two ends physical connectors, between full DisplayPort, mini DisplayPort, or USB-C). It’s not “adapted” because the data signals aren’t converted in any way.

    So it’s as much an “adapter” as a DP cable that is a mini one one side and a full size on the other.



  • Dual 4k120 would already saturate the bandwith.

    What would you use to drive dual 4k/120 displays over a single cable, if not Thunderbolt over USB-C? And what 2017 laptops were capable of doing that?

    Even if we’re talking about two different cables over two different ports, that’s still a pretty unusual use case that not a lot of laptops would’ve been capable of in 2017.




  • I have one of the more recent models. When I sit down at my desk, I just plug it into a Thunderbolt dock anyway, through a single port. All those extra ports just sit unused, despite having a USB-A keyboard and mouse, Ethernet jack, and 4k monitor at that desk. Plus the dongle provides power to the laptop.

    I do use the SD reader from time to time, though. I used to have an external reader that was a bit unwieldy on the laptop, but it was also a requirement from when I was shooting pictures on a CompactFlash, which has never had a built in reader on any laptop.


  • Can you break this down?

    The 2017 model pictured in this post supported Thunderbolt 3, which was a 40 gbps connection. Supported display modes included up to 4k@120, 2x4k@60, or 5k@60, which was better than the then-standard HDMI 2.0.

    What combination of resolution, frame rate, and color depth are you envisioning that having a dock handle a gigabit Ethernet connection, analog audio would require scaling down the display resolution through the same port?

    By 2021, the MacBook Pros were supporting TB4, and the spec sheets on third party docking stations were supporting 8k resolutions, even if Macs themselves only supported 6k, or up to 4x4k.

    Even if we talk about DisplayPort Alt Mode, a VESA standard developed in 2014, and supported in the 2017 models pictured in this post, that’s just a standard DP connection, which in 2017 supported HDR 5k@60. But didn’t support a whole separate dock with networking and USB ports.