HP Pro 3330 Microtower PC. Processor model: Intel Core i7-2600 (3.40 GHz, 8 MB cache, 4 cores), Motherboard chipset: Intel H61 Express. Memory slots: 2x DIMM. Discrete graphics adapter model: Intel HD Graphics. Optical drive type: SATA SuperMulti DVD writer. Operating system provided: Windows 7 Professional 64