HP Compaq 6300MT brand PC. Processor - Intel Core i5-3470 3rd generation 3.20GHz, Chipset - Intel Q75 Chipset, RAM (MB) - 4GB, RAM Type - DDR3 RAM, HDD (GB) - 500GB, HDD Type - SATA HDD, Monitor - 18.5" wide LED monitor, Optical Device - DVD+/-RW, Graphics - Intel HD Graphics 2500, Audio Chipset - Realtek ALC221 codec, Speaker - internal audio speaker, Networking - Intel 82579LM GbE platform LAN 10/100/1000 Mbps, I/O Ports - RJ-45, USB 3.0- 4, USB 2.0- 6, DisplayPort 1.1, VGA, Keyboard - HP keyboard, Mouse - HP mouse, OS - Free DOS, Warranty (Year) - 3 years warranty, Others - Max. Turbo Boost upto 3.6GHz, 6MB cache, 1600MHz DDR3 RAM, Max. RAM - 32GB, RAM