Cpu:intel j1900 2.0ghz/1037(nm70) 1.86ghz/i3 3217u(hm65) 1.8ghz/i5 3317u (hm65) Memory ddr: ddr3 2gb /4gb(optional), memory replaceable Hard drive:32gb expandable to 256 gb, hard disc 320-500gb Display:38.1cm (15") true flat 5-wire resistive touch screen/projected capacitive touch screen. Resolution:1024 x768 Dc input:1 x mini din 2p (dc 12v only) Color:main unit: gray / white / black * customized color for plastic parts Dimension( wx h x d ):370 x 300 x 236 mm Weight:5.4kgs Certifications:ccc, ce, fcc, rohs I/o ports -external: Network (lan): 1 x gigabit ethernet by rj-45 Usb port: 4 x usb 2.0 Serial port: 2 x rs-232 w/ ir/5v/12v power Audio: 1 x line-out ; 1 x mic-in (optional) Ps/2 port: 2 x ps/2 connector for keyboard Lpt port: 1 x db-25 printer port (standard) Vga port: 1 x db-15 vga port (optional)