The MacBook Air also now includes both a high-speed Thunderbolt port  and two USB 3 ports, enabling you to easily connect to external displays  and a wide variety of high performance peripherals.
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| The MacBook Air with 13.3-inch screen | 
This version of the MacBook Air (model MD232LL/A) sports a 13.3-inch  high-resolution display, 1.8 GHz Intel Core i5 dual-core processor, 256  GB of flash memory storage, 4 GB of RAM, an SD card slot, and up to 7  hours of battery life. It also comes with the iLife '11 software suite, which includes the latest versions of iPhoto, iMovie, and GarageBand. 
 
Free Upgrade to OS X 10.8 Mountain Lion
This Mac comes  pre-installed with OS X 10.7 Lion, but it is eligible to a free upgrade  to OS X 10.8 Mountain Lion. When Mountain Lion becomes available in  July, Apple's Up-To-Date program page for details on how to request your copy of Mountain Lion. 
Apple's  OS X Mountain Lion Up-to-Date upgrade is available to all customers who  purchase a qualifying new Mac system from Apple or an Apple Authorized  Reseller on or after June 11, 2012. Customers who purchase a qualifying  Mac between June 11, 2012 and the date when Mountain Lion is available  in the Mac App Store will have 30 days from the OS X Mountain Lion  release date to make a request.
Mountain Lion introduces  innovative features including the all new Messages app, Notification  Center, system-wide Sharing, AirPlay Mirroring, Game Center, and the  enhanced security of Gatekeeper. With iCloud built into the foundation  of OS X, Mountain Lion makes it easier than ever to keep your content up  to date across all your devices. 
Key Features
Intel Core i5 Dual-Core Processing
The  MacBook Air packs plenty of power thanks to the latest Intel Core i5  processor, which features a faster processor, more powerful graphics,  and a memory controller integrated into a single chip. The  third-generation dual-core Intel Core i5 has a 1.8 GHz speed, which can  dynamically accelerate up to 2.8 GHz to match your workload thanks to  updated Intel Turbo Boost Technology.
And with the Intel HD  Graphics 4000 processor, you get up to 60 percent faster graphics. So  the video you watch, the FaceTime calls you make, and pretty much  everything else you do is smoother and more detailed.
High-speed Thunderbolt and USB 3 Ports
A high-speed  Thunderbolt port allows the MacBook Air to transfer data at  lightning-fast speeds and connect displays like the Apple Thunderbolt  Display, enabling you to turn this highly portable notebook into a  highly versatile workstation. And with two USB 3 ports, you'll be able  to connect the latest USB 3 devices and access a pipeline that's up to  10 times faster than USB 2.
Because Thunderbolt is based on  DisplayPort technology, you'll be able to connect to a high-resolution  display from the same port. Any Mini DisplayPort display plugs right  into the Thunderbolt port, and you can also connect displays that use  DisplayPort, DVI, HDMI, or VGA connections with an existing adapter.  You'll also be able to include your display into a daisy-chained set of  peripherals.
Flash Memory Storage
By replacing the  standard spinning hard drive typically found in laptops (as well as  desktop PCs) with flash memory, the MacBook Air delivers an almost  instantaneous boot-up when you open the display, as well as faster  application launches and snappier overall performance. Additionally,  Apple has shed the enclosure that typically surrounds flash memory  (usually about the same size as a standard hard drive), thus giving it a  smaller footprint and helping to decrease the size of the MacBook Air.
Multi-Touch Trackpad
The Multi-Touch gestures in OS X make  everything you do on MacBook Air more intuitive, direct, and fun. You  can pinch, swipe or rotate images on the display screen with the brush  of two fingers, or add more digits for a four-fingered vertical swipe to  open Expose and quickly glance at all of your open windows.
Integrated HD FaceTime Webcam
You'll  be able to easily connect with friends, family, and business colleagues  using the MacBook Air's HD 720p FaceTime camera, which is integrated  into the thin bezel above the display and features three times the  resolution of the previous FaceTime camera. And with Apple's FaceTime  application, you're not limited to video chats with other Macs--you can  now make video calls to iPhone and iPod touch users.
Backlit Keyboard
The  MacBook Air manages to fit a full-size keyboard that makes typing as  natural as it is comfortable. And the keyboard is backlit, so you can  type with ease in even the dimmest light. A built-in ambient light  sensor detects changes in lighting conditions and adjusts the display  and keyboard brightness automatically. 
Specifications
 
 - 13.3-inch LED-backlit glossy widescreen display with a 1440 x 900-pixel resolution  
 
- Up to 7 hours of wireless productivity plus up to 30 days of standby time  
 
- 1.8 GHz Intel Core i5 dual-core processor (2.8 GHz with Turbo Boost Technology; 3 MB L3 cache) 
 
- 256 GB flash memory storage  
 
- 4 GB installed RAM (1600 MHz DDR3; supports up to 8 GB)  
 
- Intel HD Graphics 4000 integrated graphics processor  
 
- Built-in HD 720p FaceTime camera for video chatting  
 
- Wi-Fi wireless networking (based on 802.11n specification; 802.11a/b/g compatible)  
 
- Bluetooth 4.0 for connecting with peripherals such as keyboards, mice and cell phones  
 
- Thunderbolt port  (up to 10 Gbps) with native video output support for Mini DisplayPort  plus DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold  separately)  
 
- Two USB 3 ports (up to 5 Gbps; backwards compatibility with USB 2) 
 
- Built-in stereo speakers along with omnidirectional microphone, headphone minijack  
 
- Dimensions: 12.8 x 8.94 x 0.68 inches (WxDxH)  
 
- Weight: 2.96 pounds  
 
What's in the Box
13.3-inch MacBook Air, 45W MagSafe 2 power adapter, AC wall plug, and power cord, printed and electronic documentation 
Limited Warranty And Service
The  MacBook Air comes with 90 days of free telephone support and a 1-year  limited warranty, which can be extended to 3 years with the AppleCare  Protection Plan.
Installed Software
At the heart of  every MacBook Air--and every Mac--is OS X Lion, an operating system  that's both easy to use and incredibly powerful. It's built on a  rock-solid UNIX foundation and engineered to take full advantage of the  technologies in every new Mac. So everything works together perfectly.  And features like Multi-Touch gestures and Mission Control let you  interact with your computer in amazing and intuitive new ways. 
- OS  X Lion (includes Mail, Address Book, iCal, the Mac App Store, iTunes,  Safari, Time Machine, FaceTime, Photo Booth, Mission Control, Launchpad,  AirDrop, Resume, Auto Save, Versions, Quick Look, Spotlight, QuickTime,  and more) 
 
iLife helps you do more with photos, movies,  and music than you ever thought possible. In iPhoto, you can browse,  edit, and share your photos in stunning new full-screen views. Create  epic Hollywood-style movie trailers from your home video in iMovie. And  GarageBand gives you everything you need to make a great-sounding  song--including tools for keeping your song in perfect rhythm and guitar  and piano lessons.
- iLife (includes iPhoto, iMovie, and GarageBand) 
 
AppleCare Protection Plan
Because Apple makes the hardware,  the operating system, and many applications, the Mac is a truly  integrated system. And only the AppleCare Protection Plan  gives you one-stop service and support from Apple experts, so most  issues can be resolved in a single call. Extend the complimentary  service and support on your Mac to 3 years from the original Mac  purchase date with the AppleCare Protection Plan. You get direct  telephone access to Apple experts for technical questions, and you get  global repair coverage--including both parts and labor--for your Mac and  select Apple peripherals. 
The ultimate everyday notebook is better than ever. MacBook Air now  features the latest Intel processors and graphics, faster flash storage,  and a 720p FaceTime HD camera. All packed into a notebook that's  incredibly thin and light. With up to 60 percent faster graphics  performance, it makes everything you do feel quicker and more fluid than  ever. And the latest flash storage is up to 4x faster than a  traditional hard drive, making MacBook Air remarkably responsive. 
Thin, light, durable design   High-resolution display   OS X Lion   Up  to 7 hours of battery lifeSpecifications   Intel Core i5 1.8GHz  Dual-Core Processor with Turbo Boost up to 2.8GHz   3MB Shared L3 Cache    4GB of 1600MHz DDR3L onboard Memory   256GB Flash Storage   13.3-inch  (diagonal) high-resolution LED-backlit glossy Widescreen Display, 1440  by 900 resolution   Intel HD Graphics 4000 (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)   802.11n Wi-Fi wireless networking; IEEE  802.11a/b/g compatible   Bluetooth 4.0    SD Card Slot   720p FaceTime  HD Camera   Integrated Stereo Speakers and Omnidirectional microphone    Full-size backlit keyboard with 78 (U.S.) including 12 function keys and  4 arrow keys (inverted T arrangement) with ambient light sensor    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   Connections & Expansions -   2 x USB 3.0, Headphone (Support for Apple iPhone headset with remote  µphone), and Thunderbolt (Native Mini DisplayPort output)    Power -   100V-240V AC, 50-60Hz   Unit Dimensions (WxHxD) -  12.8 x 0.11-0.68  x  8.94 inches (32.5 x 0.3-1.7 x 22.7 cm)   Unit Weight -  2.96 pounds  (1.35 kg)