Zotac ZBOXHD-AD01-U. Maximum CPU clock speed supported: 1500 MHz, Processor family: AMD, Processor front side buses supported: 667 MHz. Supported hard disk drive interfaces: Serial ATA, Serial ATA II. Maximum internal memory: 4 GB, Memory slots: 1x SO-DIMM, Supported memory clock speeds: 800 MHz. Graphic adapter: Radeon HD 3200, Graphics adapter family: AMD. Audio output channels: 7.1, Audio system: HDA