Elo TouchSystems 15B1. Processor clock speed: 2.2 GHz, Processor cache: 0.5 MB. Internal memory: 2 GB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB, Storage media type: HDD, Storage drive interface: Serial ATA. Display diagonal: 381 mm (15 "), Display resolution: 1024 x 768 pixels, Aspect ratio: 4:3. On-board graphics adapter model: Intel GMA X4500