Processor intelreg celeron j1900 2ghz burst frequency 241ghz 2 mb cache quad core 4 core memory 2gb ddr3 sdram expandable to 8gb 2 x sodimm hard drive 500gb serial ata300 optical drive dvd writer software operating system windows 81 display not included graphics intel hd networking ethernet technology ethernet bluetooth power supply maximum power supply wattage 220w dimensions width 3696 mm depth 2665 mm height 100 mm interfaces 1 x hdmi 4 x usb 30 ports 1 x usb