Wortmann AG TERRA ALL-IN-ONE-PC 2200. Processor clock speed: 2.1 GHz, Processor family: Intel Core 2 Duo. Internal memory: 2 GB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 500 GB, Hard drive rotational speed: 7200 RPM. Optical drive type: DVD±RW. Compatible memory cards: MMC, SD, SDHC