Acer AX1920-UR10P Desktop (Black) Intel Pentium_E6600 Processor 3.06GHz (2MB Cache) 4 GB SDRAM DDR3 RAM 500GB 7200rpm Hard Drive 4 Total USB 2.0 Ports (2 USB 2.0 Ports Front, 2 USB 2.0 Rear Ports) Windows 7 Home Premium 64-bit