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How can I set up a dual Thunderbolt on a 2012 Mac mini server? I daisy chained them but the second stays black.

Do I need a Thunderbolt to HDMI adaptor, from which vendor, how can I not lose resolution?

Or does this setting work only with the non-server Mac mini with the AMD Radeon HD 6630M graphics card?

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You need the 2.5 Ghz Mac Mini, which indeed also comes with an AMD Radeon HD 6630M instead of the integrated Intel HD Graphics 3000 on the 2.3Ghz model.

For a list of models that support up to two Thunderbolt displays connected, check this support article over on the Apple website:

Thunderbolt ports and displays: Frequently asked questions (FAQ)

  • 14 - How many Apple Thunderbolt Displays can I use with my Mac in OS X?
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