Gateway PS.GAA03.001. Processor clock speed: 3.2 GHz, Processor family: Intel Core i5, Processor model: i5-650. Internal memory: 4 GB, Maximum internal memory: 16 GB, Memory layout: 2 x 2 GB. Total storage capacity: 320 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA II. Discrete graphics adapter model: GMA 4500 HD. Audio formats supported: AAC, MP3, WAV, WMA, Audio output channels: 5.1