HP XZ906UT, Compaq Elite Desktop. Processor clock speed: 2.9 GHz, Processor model: G850, Motherboard chipset: Intel Q67 Express. Internal memory: 2 GB, Maximum internal memory: 8 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Hard drive rotational speed: 7200 RPM. Optical drive type: DVD Super Multi. Display diagonal: 584.2 mm (23 "), Display resolution: 1920 x 1080 pixels, Display brightness: 250 cd/m²