Elo TouchSystems 1520 Acoustic Pulse Recognition. Processor clock speed: 3000 MHz, Processor family: Intel Core 2 Duo, Processor model: E8400. Internal memory: 2000 MB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB. Display diagonal: 381 mm (15 "), Display resolution: 1024 x 768 pixels, Display brightness: 230 cd/m². Discrete graphics adapter model: GMA 4500M