thunderbolt port to minidisplay port
Can I connect my 11 inch MacBook Air (Sep 2011) with a thunderbolt port to my iMac 27 inch (Jan 2011) with a mini-display port so I can use the larger display?
iMac, Mac OS X (10.7.2), 27 inch - 2011
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Yes,
A notable peculiarity of Thunderbolt is that it uses exactly the same connector as Mini Display Port, and that's not all. The Thunderbolt connector also carries Mini Display Port video signals. That means you can plug a Mini Display Port video cable/adapter in to a Thunderbolt connector and your monitor will work.
If you plan to do other things with your Thunderbolt connector and don't want it wasted on a monitor, you can also choose an HDMI --> DVI adapter, which for your purposes will be functionally equivalent.
You can even use both at the same time.
- Anonymous
http://x704.net/bbs/viewtopic.php?f=13&t=6134&p=75115&hilit=thunderbolt#p75115