Lenovo C200. Processor clock speed: 1800 MHz, Processor family: Intel Atom, Processor model: D525. Internal memory: 2048 MB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Storage media type: HDD, Storage drive interface: Serial ATA II. Optical drive type: DVD Super Multi. Compatible memory cards: Memory Stick (MS), MMC, MS PRO, SD, SDHC, xD