Display
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Retina display: 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 resolution at 227 pixels per inch with support for millions of colors
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Processor
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2.4GHz 2.4GHz dual-core Intel Core i5 processor (Turbo Boost up to 2.9GHz) with 3MB shared L3 cache
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Memory
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2.4GHz - 256GB 8GB of 1600MHz DDR3L onboard memory Configurable to 16GB..
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Storage1
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2.4GHz 256GB
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Dimension
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Height: 0.71 inch (1.8 cm) Width: 12.35 inches (31.4 cm) Depth: 8.62 inches (21.9 cm)
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Camera
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720p FaceTime HD camera
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Wireless
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Wi-Fi 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible
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Bluetooth
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Bluetooth 4.0 wireless technology
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Audio
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Stereo speakers Dual microphones Headphone port Support for Apple iPhone headset with remote and microphone Support for audio line out (digital/analog)
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Keyboard
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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
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Trackpad
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Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three-finger swipe, four-finger swipe, tap, double-tap, and drag capabilities
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Battery
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Built-in 71.8-watt-hour lithium-polymer battery
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Operating System
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OS X Mavericks
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Connections and Expansion
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MagSafe 2 power port Two Thunderbolt ports (up to 20 Gbps) Two USB 3 ports (up to 5 Gbps) HDMI port Headphone port SDXC card slot Apple Thunderbolt to FireWire Adapter (sold separately) Apple Thunderbolt to Gigabit Ethernet Adapter (sold separately)
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