Samsung NP305V5A, 3 Series. Processor clock speed: 1.6 GHz, Processor model: A6-3410MX. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Maximum internal memory: 8 GB. Total storage capacity: 640 GB, Hard drive interface: Serial ATA, Compatible memory cards: MMC, SD, SDHC, SDXC. Display diagonal: 396.2 mm (15.6 "), Display resolution: 1366 x 768 pixels, Aspect ratio: 16:9. Optical drive type: DVD Super Multi