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Headphone/optical digital audio output (minijack).Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)Ĩ02.11n Wi-Fi wireless networking 3 IEEE 802.11a/b/g compatible.Apple Thunderbolt to FireWire Adapter (sold separately).Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, at millions of colors.2560 X 1600 Native Resolution at 227 pixels per inch with support for millions of colors.
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