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Full-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted "T" arrangement) with ambient light sensor.Support for audio line out (digital/analog).Support for Apple iPhone headset with remote and microphone.Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)Ĩ02.11ac Wi-Fi wireless networking 3 IEEE 802.11a/b/g/n compatible.Apple Thunderbolt to FireWire Adapter (sold separately).Two Thunderbolt 2 ports (up to 20 Gbps).Support for 4096-by-2160 resolution at 24Hz.
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Retina display: 15.4-inch (diagonal) LED-backlit display with IPS technology 2880-by-1800 resolution at 220 pixels per inch with support for millions of colors.
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