I have a MBP15 (2016) and connected it to my Thunderbolt Display via the official [Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter]. but the cable is too short for my needs right now. I tried 3 different Extension Cables (1, 2, 3) but none of them worked (no image on the screen). Is there a cable that works? If not possible is there a dock that can do this?

1 Answer 1


Sure. Any thunderbolt 3 or 2 dock will work. Be sure to read the friendly manual - not all cables that fit physically in a thunderbolt slot are thunderbolt cables and cables can be faulty.

I’ve only seen 10 foot 2 cables in copper. You’ll need optical to go further and they are pricey but very long range. Two feet is the longest 3 cable I’ve seen.

  • Thank you for your answer but the first cable does not work for me because I would need one with a "female" end. I also would prefer one cable because this would be a cheaper option.
    – xXx
    Commented Dec 21, 2020 at 11:50
  • 1
    There is no cheap option @xxx . You need a dock to get the female thunderbolt to function. I would have offered the inexpensive option for sure if any worked. You need the 3-2 adapter if you get a 2 dock.
    – bmike
    Commented Dec 21, 2020 at 13:04
  • I bought this exact doc and if i connect the monitor directly or indirectly (with original usb c adapter). It says "cannot use thunderbolt accessory"
    – xXx
    Commented Dec 23, 2020 at 12:52
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    I’ve seen that with cables or faulty hardware. Have you worked with OWC support to make sure everything they shipped is operational? @xxx for us it’s usually a cable issue or the Thunderbolt Display is now failing or failed :(
    – bmike
    Commented Dec 23, 2020 at 13:14
  • sorry it works now: i had to use the original adapter, because the display port does not support thunderbolt2 and the original apple charging cable does not support thunderbolt 3
    – xXx
    Commented Dec 23, 2020 at 13:36

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