One of the most exciting things about today’s new iMacs (s aapl) (and the thing that will probably result in me buying one) are the dual Thunderbolt ports on the 27-inch iMac. They’re great in that they provide a lot of potential I/O transfer power, but more importantly because it allows the new iMac to output to two external monitors simultaneously, Apple confirmed to me this morning.
Users who want to use more than one external monitor with their Mac have so far been fairly limited in their options. You can use a USB-to-DVI or VGA solution, as I’ve mentioned before, or you can use a wireless solution such as Air Display, but both solutions offer downsides (USB video adapters don’t support things like 3D acceleration and wireless solutions inevitably have some degree of lag) that native wired DisplayPort output does not.
Now, using two Mini DisplayPort adapters…
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