MSI 6668-004BUS. Maximum CPU clock speed supported: 1660 MHz, Processor family: Intel, Processor socket: BGA559. Supported hard disk drive interfaces: Serial ATA II. Maximum internal memory: 4 GB, Memory slots: 2x SO-DIMM, Supported memory clock speeds: 667, 800 MHz. Graphic adapter: Mobility Radeon HD 4330, Graphics adapter family: ATI. Audio output channels: 7.1, Audio system: Realtek ALC858