Systems are available in 11.6 and 13.3-inch models with two set configurations for each. Starting at $999, the 11-inch features a 1366x768 screen, a 1.4GHz Intel Core 2 Duo processor, 2GB of DDR3 1066MHz RAM, Nvidia GeForce 320M graphics, and 64GB of storage. For another $200 you can get the 11-incher equipped with a 128GB flash drive, while 4GB of RAM and a 1.6GHz Core 2 Duo are upgradeable for $100 each.
Meanwhile, the 13-inch Air costs between $1,299 and $1,599, packing a 1440x900 resolution display, a 1.86GHz Core 2 Duo, 2GB of RAM (optional 4GB), and a GeForce 320M. The price difference again boils down to storage. The cheaper option has a 128GB SSD, while the more expensive iteration doubles that to 256GB. The pricier MacBook Air also has the option to upgrade to a 2.13GHz Core 2 Duo for $100.
All versions of the latest MacBook Air come with a glass multi-touch trackpad, a webcam, one Mini DisplayPort, two USB 2.0 ports, as well as 802.11n Wi-Fi and Bluetooth 2.1+EDR connectivity. An SD card slot is exclusive to the 13-incher. Battery life is quoted at five hours for the 11-inch model and seven hours for the 13-inch, while both are rated for up to 30 days of standby time. Units are available now via Apple's web store.