Aopen I945GMT-FSA. Supported memory types: SO-DIMM DDRII 667/533/400, Maximum internal memory: 4 GB. Processor family: Intel, Processor socket: Socket 479, Processors compatible: Core Duo / Core Solo (Yonah) and Celeron M (4xx) Processor. Audio system: Integrated Intel High Definition Audio, Audio output channels: 7.1. Width: 170 mm, Depth: 170 mm. BIOS memory size: 4 MB