HP Pro 3300 Microtower PC. Processor model: Intel Core i3-2100 (3.10 GHz, 3 MB cache, 2 cores), Motherboard chipset: Intel H61 Express. Memory slots: 2x DIMM. Discrete graphics adapter model: Integrated Intel HD. Optical drive type: SATA SuperMulti DVD writer. Operating system provided: Windows 7 Professional 64