Benq nScreen i91. Processor clock speed: 1.5 GHz. Internal memory: 1 GB, Maximum internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Hard drive rotational speed: 5400 RPM. Display diagonal: 469.9 mm (18.5 "). Discrete graphics adapter model: AMD Radeon X1200