MacBook Air 11-Inch (MC506LL/A), 1.6GHz, 4GB RAM, 128GB Flash Storage, NVIDIA GeForce 320M Mac OS X Snow Leopard 1.6GHz Intel Core 2 Duo processor with 3MB shared L2 cache, 128 GB SSD NVIDIA GeForce 320M graphics processor with 256MB of DDR3 SDRAM shared with main memory Precision aluminum unibody