Purchase the AppleCare Protection Plan to extend your service and support to three years from your computer’s purchase date. Your MacBook Air comes with 90 days of free telephone support and a one-year limited warranty. Includes Mail, Messages, Contacts, Calendar, Safari, Reminders, Notification Center, Notes, Dictation, iCloud, Time Machine, FaceTime, Photo Booth, AirPlay, Game Center, the Mac App Store, iTunes, Gatekeeper, Twitter and Facebook integration, and more.
Operating altitude: tested up to 10,000 feet. 
Relative humidity: 0% to 90% noncondensing. Operating temperature: 50° to 95° F (10° to 35° C). 45W MagSafe 2 Power Adapter with cable management MagSafe 2 power port. Built-in 54-watt-hour lithium-polymer battery. 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. 
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 Apple iPhone headset with remote and microphone. 802.11ac Wi-Fi networking 3 IEEE 802.11a/b/g/n compatible. HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately). Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately). VGA output using Mini DisplayPort to VGA Adapter (sold separately). DVI output using Mini DisplayPort to DVI 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 an external display, both at millions of colors. 
1.3GHz dual-core Intel Core i5 (Turbo Boost up to 2.6GHz) with 3MB shared 元 cacheĬonfigurable to 1.7GHz dual-core Intel Core i7 (Turbo Boost up to 3.3GHz) with 4MB shared 元 cache.13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colorsġ440 by 900 (native), 1280 by 800, 1152 by 720, and 1024 by 640 pixels at 16:10 aspect ratio and 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratio.
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