13.3-inch (diagonal) glossy TFT widescreen display, 1280 x 800 resolution; Mac OS X v10.5 Leopard.1 GB (two SO-DIMM) 667 MHz DDR2 SDRAM; 120 GB 5400 rpm Serial ATA hard drive; 24x combo drive.2.1 GHz Intel Core 2 Duo processor with 3 MB shared L2 Cache.One FireWire 400, two USB 2.0 ports, DVI, VGA, S-video, and composite video (requires adapters, sold separately).Built-in 10/100/1000BASE-T (Gigabit) Ethernet; Built-in AirPort Extreme Wi-Fi (IEEE 802.11n); built-in Bluetooth 2.0+EDR (Enhanced Data Rate) module. The new hafnium-infused circuitry--which reduces electrical current leakage in transistors--conserves even more energy, giving you more time away from the wall outlet. With a substantial 3 MB of shared L2 cache, data and instructions can be kept close to the two processor cores, greatly increasing performance and allowing the entire system to work more efficiently. And, because the processor cores share the L2 cache, either can use the entire amount if the other happens to be idle. Wireless Connectivity The built-in 802. [Find Out More Here ...]

4GB DDR3 RAM.128GB Solid-State Hard Drive.Mac OS, 7 hours Battery Life.The new MacBook Air is up to 2.5x faster than before. It features the latest Intel Core i5 dual-core processor, 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 5 hours and offers up to 30 days of standby time. All in a durable unibody design that's thin, light, and ready for anything.