HP Compaq Pro 6300 All-in-One PC. Processor model: Intel Core i5-3470S with Intel HD Graphics 2500 (2.90 GHz, 6 MB cache, 4 cores), Motherboard chipset: Intel Q75 Express. Memory slots: 2x SO-DIMM. Discrete graphics adapter model: Intel HD Graphics 2500. Optical drive type: Slim Tray-load SuperMulti DVD writer. Operating system provided: Windows 7 Professional