HP Compaq Elite 8300 Ultra-slim PC. Processor model: Intel Core i7-3770S with Intel HD Graphics 4000 (3.10 GHz, 8 MB cache, 4 cores), Motherboard chipset: Intel Q77 Express. Memory slots: 2x SO-DIMM. Discrete graphics adapter model: Integrated Intel HD Graphics 4000. Optical drive type: Slim SATA SuperMulti DVD writer. Operating system provided: Windows 7 Professional