This 13-inch MacBook Air is equiped with 1.7GHz dual-core Intel Core i5 processor, 4GB memory, 256GB flash storage, and Intel HD Graphics 3000.The new MacBook Air is up to 2.5x faster than before.1 It features the latest Intel Core processors, high-speed Thunderbolt I/O, a backlit keyboard, and OS X Lion, the next major release of the world's most advanced desktop operating system. MacBook Air also comes standard with flash storage, so it boots up in seconds, launches apps quickly, and wakes from sleep in an instant. And a long-lasting battery powers MacBook Air for up to 7 hours and offers up to 30 days of standby time.2 All in a durable unibody design that's thin, light, and ready for anything.1. Compared to previous-generation MacBook Air.2. Battery life varies by use and configuration. See www.apple.com/batteries for more information.Key MacBook Air FeaturesNext-generation dual-core Intel processorsHigh-speed Thunderbolt I/O Full-size, backlit keyboardAll-flash storageThin, light, durable designHigh-resolution displaysOS X LionOS X Lion FeaturesInteract with your Mac using intuitive new Multi-Touch gestures.Mission Control provides a bird's-eye view of everything running on your Mac.Launchpad puts all your apps front and center for easy access.View apps full screen and switch between them with a swipe.