HP Compaq Pro 4300 Small Form Factor PC. Processor model: Intel Core i7-3770S with Intel HD Graphics 4000 (3.10 GHz, 8 MB cache, 4 cores), Motherboard chipset: Intel H61 Express. Memory slots: 2x DIMM. Discrete graphics adapter model: AMD Radeon HD 6350 (512 MB). Operating system provided: Windows 7 Professional. Networking features: Integrated Broadcom BCM 57788 Gigabit Ethernet LAN with Lightning protection