Only certain Macs from 2011 or newer support it ➡ Requirements for AirPlay Mirroring in OS X Mountain Lion - #tech http://t.co/FgWD6u3u
August 04, 2012
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About AirPlay Mirroring in OS X Mountain Lion
AirPlay Mirroring lets you send what's on your Mac screen to an HDTV wirelessly with Apple TV. Requirements for AirPlay Mirroring in OS X Mountain Lion An Apple TV Supported Macs AirPlay Mirroring in OS X Mountain Lion takes advantage of the hardware video encoding capabilities of 2nd and 3rd Generation Intel Core processors.

