Thunderbolt port to mini-Displayport via Thunderbolt to Thunderbolt cable

Will a Thunderbolt cable connect a 2012 MacbookPro (with a Thunderbolt port) to a late-2009 iMac (with a miniDisplay port) and operate in target mode? What about audio signal as well as video?

  • Asked by Andrew M from Darien
  • Jan 8, 2013
Apple Thunderbolt Cable

Apple Thunderbolt Cable

Product No Longer Available

2 Answers from the Community

  • Best Answer:

    The simple answer is no. The Mini-DisplayPort in your 2009-era iMac won't understand the thunderbolt signal. The Mini-DisplayPort in your iMac doesn't have a data channel the way ThunderBolt does, so it can't work in Target mode. Also, I've tried connecting ThunderBolt MacBooks to my 2009-era 27" iMac with a Mini-DisplayPort cable and the iMac doesn't recognize the laptop and doesn't display it's contents on the screen.

    Sadly. despite looking physically identical, ThunderBolt and Mini-DisplayPort don't play well together.

    • Answered by Matthew S from Toronto
    • Jan 15, 2013
  • All you need is a mini-Displayport to mini-Displayport cable. Skip this upscale Thunderbolt to Thunderbolt cable. You'll find mini-Displayport to mini-Displayport cables much cheaper in other retailers.

    • Answered by Meng W from Ansonia
    • Jan 18, 2013