1. donawalt's Avatar
    Hi all, I have a 2017 MBP 15", and I had a question that I have not been able to find an answer to. From what I have read, all 4 ports on the 15" are identical Thunderbolt 3 (USB-C compatible) ports - completely interchangeable. Yet, from time to time I read someone who says something like "that only worked when I plugged into a port on the right side...)

    Are there differences between the ports, even for legacy devices, or are they truly identical?

    08-11-2017 03:24 PM
  2. Quis89's Avatar
    They are identical on the 15 inch model.

    Thunderbolt 3 data speeds per MacBook Pro port
    MacBook Pro models introduced in 2016 vary slightly in the data speeds they provide to each Thunderbolt 3 port:
    MacBook Pro (15-inch, 2016) delivers full Thunderbolt 3 performance on all four ports.
    MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) supports Thunderbolt 3 at full performance using the two left-hand ports. The two right-hand ports deliver Thunderbolt 3 functionality, but have reduced PCI Express bandwidth.
    Always plug higher-performance devices into the left-hand ports on MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) for maximum data throughput.
    MacBook Pro (13-inch, 2016, Two Thunderbolt 3 Ports) delivers full Thunderbolt 3 performance on both ports.
    08-11-2017 11:47 PM
  3. donawalt's Avatar
    Thanks, this says 2016 MBP. Mine is a 2017. Are the two 2017 models the same as this?
    08-12-2017 06:25 AM
  4. Abu Khadija's Avatar
    I bought the 2017 15" MacBook Pro almost 3 weeks ago. All I've done so far is to see if all the ports will charge the thing. All of them do. I haven't yet hooked a monitor up yet.
    08-13-2017 07:46 AM
  5. Abu Khadija's Avatar
    Yesterday I was downloading 2 books from iBooks and a movie from iTunes while I was playing a game. The part between the screen and the touch bar was starting to get hot. I stopped the game and than it started cooling down. I haven't gotten AppleCare yet. Hope there's nothing to be concerned about.
    Yesterday 10:08 PM

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